Glyco Property List
Pooled literature properties (glycanDB). Optional filters: ?dataset=uv_vis&property_key=...
GET /api/gdd/glyco-properties/?format=api&page=28
{ "count": 839, "next": "http://glycodata.org/api/gdd/glyco-properties/?format=api&page=29", "previous": "http://glycodata.org/api/gdd/glyco-properties/?format=api&page=27", "results": [ { "id": 541, "dataset": "cellulose", "entity": "cellulose nanocrystals (CNC, cotton linter)", "entity_group": "cotton", "entity_class": "nanocellulose", "property": "crystallinity index", "property_key": "crystallinity_index", "value": "93.5", "unit": "%", "value_reported": "93.5", "unit_reported": "%", "method": "Review", "method_detail": "XRD, Segal method (cited literature value)", "conditions": "XRD, Segal method (cited literature value)", "conditions_detail": "XRD, Segal method (cited literature value) | measurement: XRD Segal | allomorph: I | source: cotton linter CNC", "doi": "10.3390/fib10070061", "source_url": "https://doi.org/10.3390/fib10070061", "year": "2022", "confidence": "medium", "comments": "\"However, it was lower than the value for cotton liner (93.5%) [36].\" — Literature value cited within Indirasetyo & Kusmono 2022 for cotton-linter CNC. [Indirasetyo EN, Kusmono, 2022, confidence: medium]" }, { "id": 542, "dataset": "cellulose", "entity": "cellulose nanocrystals (CNC, microcrystalline cellulose precursor)", "entity_group": "cellulose nanocrystal (CNC)", "entity_class": "nanocellulose", "property": "crystallinity index", "property_key": "crystallinity_index", "value": "98.4", "unit": "%", "value_reported": "98.4", "unit_reported": "%", "method": "Experiment", "method_detail": "XRD, Segal method (after baseline correction)", "conditions": "XRD, Segal method (after baseline correction)", "conditions_detail": "XRD, Segal method (after baseline correction) | measurement: XRD Segal | allomorph: I | source: cellulose nanocrystals from microcrystalline cellulose", "doi": "", "source_url": "https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2021.774783/full", "year": "2021", "confidence": "medium", "comments": "\"Using Segal's method, crystallinity indexes of microcrystalline cellulose at 92.1% and cellulose nanocrystals at 98.4% were measured after baseline correction.\" — Paired MCC precursor value 92.1% (see next record). Segal peak height overestimates; baseline correction inflates values further. [see source_url, 2021, confidence: medium]" }, { "id": 543, "dataset": "cellulose", "entity": "microcrystalline cellulose (CNC precursor)", "entity_group": "cellulose nanocrystal (CNC)", "entity_class": "pulp / microcrystalline cellulose", "property": "crystallinity index", "property_key": "crystallinity_index", "value": "92.1", "unit": "%", "value_reported": "92.1", "unit_reported": "%", "method": "Experiment", "method_detail": "XRD, Segal method (after baseline correction)", "conditions": "XRD, Segal method (after baseline correction)", "conditions_detail": "XRD, Segal method (after baseline correction) | measurement: XRD Segal | allomorph: I | source: microcrystalline cellulose", "doi": "", "source_url": "https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2021.774783/full", "year": "2021", "confidence": "medium", "comments": "\"Using Segal's method, crystallinity indexes of microcrystalline cellulose at 92.1% and cellulose nanocrystals at 98.4% were measured after baseline correction.\" — MCC precursor of the 98.4% CNC above. [see source_url, 2021, confidence: medium]" }, { "id": 544, "dataset": "cellulose", "entity": "cellulose nanofibrils (CNF)", "entity_group": "cellulose nanofibril (CNF)", "entity_class": "nanocellulose", "property": "crystallinity index", "property_key": "crystallinity_index", "value": "80.87", "unit": "%", "value_reported": "80.87", "unit_reported": "%", "method": "Experiment", "method_detail": "XRD, Segal formula", "conditions": "XRD, Segal formula", "conditions_detail": "XRD, Segal formula | measurement: XRD Segal | allomorph: I | source: cellulose nanofibrils", "doi": "", "source_url": "https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2021.774783/full", "year": "2021", "confidence": "medium", "comments": "\"the crystallinity index (CrI) of CNF determined by X-ray diffraction using the Segal formula was 80.87%.\" — CNF (nanofibril) Segal XRD value. [see source_url, 2021, confidence: medium]" }, { "id": 545, "dataset": "cellulose", "entity": "TEMPO-oxidized cellulose nanofibers (TOCN)", "entity_group": "cellulose nanofibril (CNF)", "entity_class": "nanocellulose", "property": "crystallinity index", "property_key": "crystallinity_index", "value": "80.0", "unit": "%", "value_reported": "65-95", "unit_reported": "%", "method": "Review", "method_detail": "XRD (range across studies)", "conditions": "XRD (range across studies)", "conditions_detail": "XRD (range across studies) | measurement: XRD | allomorph: I | source: TEMPO-oxidized cellulose nanofibers (various cellulose sources)", "doi": "", "source_url": "https://www.sciencedirect.com/science/article/abs/pii/S0141813023059809", "year": "2024", "confidence": "medium", "comments": "\"TEMPO-oxidized cellulose nanofibers exhibit excellent crystallinity ranging from 65-95%.\" — Review-stated range for TOCN crystallinity by XRD; cellulose I retained after oxidation. [see source_url, 2024, confidence: medium]" }, { "id": 546, "dataset": "cellulose", "entity": "bacterial cellulose (nata de coco, Acetobacter xylinum)", "entity_group": "bacterial cellulose", "entity_class": "native cellulose", "property": "crystallinity index", "property_key": "crystallinity_index", "value": "81.76", "unit": "%", "value_reported": "81.76", "unit_reported": "%", "method": "Experiment", "method_detail": "XRD, Segal method", "conditions": "XRD, Segal method", "conditions_detail": "XRD, Segal method | measurement: XRD Segal | allomorph: I | source: bacterial cellulose sheet from nata de coco (Acetobacter xylinum)", "doi": "", "source_url": "https://polimery.ichp.vot.pl/index.php/p/article/view/1118", "year": "2022", "confidence": "medium", "comments": "\"The BC sheet sample from Nata de Coco (Acetobacter xylinum) had the highest degree of crystallinity at 81.76% compared to cotton cellulose at 75.73%.\" — Bacterial cellulose 81.76% vs cotton cellulose 75.73% (same study, see next record). [see source_url, 2022, confidence: medium]" }, { "id": 547, "dataset": "cellulose", "entity": "cotton cellulose", "entity_group": "cotton", "entity_class": "native cellulose", "property": "crystallinity index", "property_key": "crystallinity_index", "value": "75.73", "unit": "%", "value_reported": "75.73", "unit_reported": "%", "method": "Experiment", "method_detail": "XRD, Segal method", "conditions": "XRD, Segal method", "conditions_detail": "XRD, Segal method | measurement: XRD Segal | allomorph: I | source: cotton cellulose (reference)", "doi": "", "source_url": "https://polimery.ichp.vot.pl/index.php/p/article/view/1118", "year": "2022", "confidence": "medium", "comments": "\"The BC sheet sample from Nata de Coco (Acetobacter xylinum) had the highest degree of crystallinity at 81.76% compared to cotton cellulose at 75.73%.\" — Cotton reference in the same study. [see source_url, 2022, confidence: medium]" }, { "id": 548, "dataset": "cellulose", "entity": "cellulose triacetate (type II)", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "crystallinity index", "property_key": "crystallinity_index", "value": "46.0", "unit": "%", "value_reported": "46", "unit_reported": "%", "method": "Experiment", "method_detail": "XRD, degree of crystallinity", "conditions": "XRD, degree of crystallinity", "conditions_detail": "XRD, degree of crystallinity | measurement: XRD | allomorph: cellulose triacetate (CTA II) | source: cellulose triacetate type II", "doi": "10.1016/0032-3861(70)90019-4", "source_url": "https://www.sciencedirect.com/science/article/abs/pii/0032386170900194", "year": "1970", "confidence": "medium", "comments": "\"Cellulose triacetate type II had a degree of crystallinity of 46%, as determined by X-ray diffraction\" — Cellulose derivative (acetate); semicrystalline. A second triacetate product was reported at 32%. [see source_url, 1970, confidence: medium]" }, { "id": 549, "dataset": "cellulose", "entity": "cellulose triacetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "crystallinity index", "property_key": "crystallinity_index", "value": "45.0", "unit": "%", "value_reported": "40-50", "unit_reported": "%", "method": "Review", "method_detail": "XRD (typical semicrystalline range)", "conditions": "XRD (typical semicrystalline range)", "conditions_detail": "XRD (typical semicrystalline range) | measurement: XRD | allomorph: cellulose triacetate | source: cellulose triacetate (general)", "doi": "10.3390/molecules27041434", "source_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC8879401/", "year": "2022", "confidence": "medium", "comments": "\"Cellulose triacetate possesses a semicrystalline structure exhibiting crystallinity levels of about 40-50%.\" — General range; cellulose acetate derivatives are markedly less crystalline than native cellulose. CMC is essentially amorphous (low/no CrI). [Shaikh HM, et al., 2022, confidence: medium]" }, { "id": 550, "dataset": "cellulose", "entity": "cellulose acetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "198.0", "unit": "C", "value_reported": "198", "unit_reported": "C", "method": "Experiment", "method_detail": "DSC (NETZSCH DSC 204 F1), second heating run, 20 K/min, N2; acetylation content ~40% (DS ~2.5)", "conditions": "DSC (NETZSCH DSC 204 F1), second heating run, 20 K/min, N2; acetylation content ~40% (DS ~2.5)", "conditions_detail": "DSC (NETZSCH DSC 204 F1), second heating run, 20 K/min, N2; acetylation content ~40% (DS ~2.5) | heating rate (K/min): 20 | test state: dry | water (wt%): 0 | DS: 2.5", "doi": "10.3390/polym13091356", "source_url": "https://www.mdpi.com/2073-4360/13/9/1356", "year": "2021", "confidence": "high", "comments": "\"The glass transition temperature was approximately 198 °C and the melting temperature was within the range of 230-250 °C.\" — Raw (unplasticized) CA powder, CS-grade, DS ~2.5, acetyl ~40%, dried overnight at 80 C before processing. [Erdmann R, Kabasci S, Heim H-P, 2021, confidence: high]" }, { "id": 551, "dataset": "cellulose", "entity": "cellulose acetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "196.6", "unit": "C", "value_reported": "196.6", "unit_reported": "C", "method": "Experiment", "method_detail": "DSC, mid-glass-transition temperature (Tmg), second heating run, 20 K/min; Tig 191.4 C, Tfg 201.6 C", "conditions": "DSC, mid-glass-transition temperature (Tmg), second heating run, 20 K/min; Tig 191.4 C, Tfg 201.6 C", "conditions_detail": "DSC, mid-glass-transition temperature (Tmg), second heating run, 20 K/min; Tig 191.4 C, Tfg 201.6 C | heating rate (K/min): 20 | test state: dry | water (wt%): 0 | DS: 2.5", "doi": "10.3390/polym13091356", "source_url": "https://www.mdpi.com/2073-4360/13/9/1356", "year": "2021", "confidence": "high", "comments": "\"CA | 100 | 191.4 | 196.6 | 201.6 | 0.233 (Table 2: Tig | Tmg | Tfg for CA 100 wt%)\" — Table 2 row CA 100 wt%; Tmg = mid-glass-transition (conventional DSC midpoint Tg). [Erdmann R, Kabasci S, Heim H-P, 2021, confidence: high]" }, { "id": 552, "dataset": "cellulose", "entity": "cellulose acetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "122.8", "unit": "C", "value_reported": "122.8", "unit_reported": "C", "method": "Experiment", "method_detail": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/GTA 85/15", "conditions": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/GTA 85/15", "conditions_detail": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/GTA 85/15 | heating rate (K/min): 20 | test state: plasticized | water (wt%): 0 | plasticizer: glycerol triacetate (GTA), 15 wt% | DS: 2.5", "doi": "10.3390/polym13091356", "source_url": "https://www.mdpi.com/2073-4360/13/9/1356", "year": "2021", "confidence": "high", "comments": "\"CA/GTA | 85/15 | 109.6 | 122.8 | 137.1 (Table 2: Tig | Tmg | Tfg)\" — 15 wt% glycerol triacetate (GTA) plasticizer; Tmg is midpoint. [Erdmann R, Kabasci S, Heim H-P, 2021, confidence: high]" }, { "id": 553, "dataset": "cellulose", "entity": "cellulose acetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "104.1", "unit": "C", "value_reported": "104.1", "unit_reported": "C", "method": "Experiment", "method_detail": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/GTA 75/25", "conditions": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/GTA 75/25", "conditions_detail": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/GTA 75/25 | heating rate (K/min): 20 | test state: plasticized | water (wt%): 0 | plasticizer: glycerol triacetate (GTA), 25 wt% | DS: 2.5", "doi": "10.3390/polym13091356", "source_url": "https://www.mdpi.com/2073-4360/13/9/1356", "year": "2021", "confidence": "high", "comments": "\"CA/GTA | 75/25 | 86.3 | 104.1 | 122.6 (Table 2: Tig | Tmg | Tfg)\" — 25 wt% glycerol triacetate (GTA). [Erdmann R, Kabasci S, Heim H-P, 2021, confidence: high]" }, { "id": 554, "dataset": "cellulose", "entity": "cellulose acetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "84.7", "unit": "C", "value_reported": "84.7", "unit_reported": "C", "method": "Experiment", "method_detail": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/GTA 60/40", "conditions": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/GTA 60/40", "conditions_detail": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/GTA 60/40 | heating rate (K/min): 20 | test state: plasticized | water (wt%): 0 | plasticizer: glycerol triacetate (GTA), 40 wt% | DS: 2.5", "doi": "10.3390/polym13091356", "source_url": "https://www.mdpi.com/2073-4360/13/9/1356", "year": "2021", "confidence": "high", "comments": "\"CA/GTA | 60/40 | 73.7 | 84.7 | 93.4 (Table 2: Tig | Tmg | Tfg)\" — 40 wt% glycerol triacetate (GTA). [Erdmann R, Kabasci S, Heim H-P, 2021, confidence: high]" }, { "id": 555, "dataset": "cellulose", "entity": "cellulose acetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "142.4", "unit": "C", "value_reported": "142.4", "unit_reported": "C", "method": "Experiment", "method_detail": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/TEC 85/15", "conditions": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/TEC 85/15", "conditions_detail": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/TEC 85/15 | heating rate (K/min): 20 | test state: plasticized | water (wt%): 0 | plasticizer: triethyl citrate (TEC), 15 wt% | DS: 2.5", "doi": "10.3390/polym13091356", "source_url": "https://www.mdpi.com/2073-4360/13/9/1356", "year": "2021", "confidence": "high", "comments": "\"CA/TEC | 85/15 | 129.5 | 142.4 | 153.4 (Table 2: Tig | Tmg | Tfg)\" — 15 wt% triethyl citrate (TEC). [Erdmann R, Kabasci S, Heim H-P, 2021, confidence: high]" }, { "id": 556, "dataset": "cellulose", "entity": "cellulose acetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "75.8", "unit": "C", "value_reported": "75.8", "unit_reported": "C", "method": "Experiment", "method_detail": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/TEC 60/40", "conditions": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/TEC 60/40", "conditions_detail": "DSC, mid-glass-transition temperature (Tmg), second heating, 20 K/min; plasticized CA/TEC 60/40 | heating rate (K/min): 20 | test state: plasticized | water (wt%): 0 | plasticizer: triethyl citrate (TEC), 40 wt% | DS: 2.5", "doi": "10.3390/polym13091356", "source_url": "https://www.mdpi.com/2073-4360/13/9/1356", "year": "2021", "confidence": "high", "comments": "\"CA/TEC | 60/40 | 69.7 | 75.8 | 111.1 (Table 2: Tig | Tmg | Tfg)\" — 40 wt% triethyl citrate (TEC). [Erdmann R, Kabasci S, Heim H-P, 2021, confidence: high]" }, { "id": 557, "dataset": "cellulose", "entity": "cellulose acetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "180.0", "unit": "C", "value_reported": "180", "unit_reported": "C", "method": "Review", "method_detail": "Manufacturer typical-properties table (Tg column, deg C); grade CA-398-3, OH 3.5%, MWn ~30,000, DS ~2.5", "conditions": "Manufacturer typical-properties table (Tg column, deg C); grade CA-398-3, OH 3.5%, MWn ~30,000, DS ~2.5", "conditions_detail": "Manufacturer typical-properties table (Tg column, deg C); grade CA-398-3, OH 3.5%, MWn ~30,000, DS ~2.5 | test state: dry | DS: 2.5 | MW (g/mol): 30000", "doi": "", "source_url": "https://cms.chempoint.com/ChemPoint/media/ChemPointSiteMedia/General-CE-Brochure.pdf", "year": "", "confidence": "high", "comments": "\"Table 1 Typical properties: CA-398-3 ... Tg deg C 180 (melting range 230-250 deg C)\" — Solution-grade cellulose acetate (CA-398 series, ~DS 2.5). Handbook/compilation table value. [Eastman Chemical Company, confidence: high]" }, { "id": 558, "dataset": "cellulose", "entity": "cellulose acetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "189.0", "unit": "C", "value_reported": "189", "unit_reported": "C", "method": "Review", "method_detail": "Manufacturer typical-properties table (Tg column, deg C); grade CA-398-30 (highest MW in series), OH 3.5%, MWn ~50,000", "conditions": "Manufacturer typical-properties table (Tg column, deg C); grade CA-398-30 (highest MW in series), OH 3.5%, MWn ~50,000", "conditions_detail": "Manufacturer typical-properties table (Tg column, deg C); grade CA-398-30 (highest MW in series), OH 3.5%, MWn ~50,000 | test state: dry | DS: 2.5 | MW (g/mol): 50000", "doi": "", "source_url": "https://cms.chempoint.com/ChemPoint/media/ChemPointSiteMedia/General-CE-Brochure.pdf", "year": "", "confidence": "high", "comments": "\"Table 1 Typical properties: CA-398-30 ... Tg deg C 189 (melting range 230-250 deg C)\" — Highest-MW CA grade in series; Tg rises with MW (180->189 C across CA-398-3 to CA-398-30). Handbook/compilation. [Eastman Chemical Company, confidence: high]" }, { "id": 559, "dataset": "cellulose", "entity": "cellulose acetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "249.85", "unit": "C", "value_reported": "Tg(K) = 523 - 20.3*DS", "unit_reported": "K", "method": "Model", "method_detail": "DSC of fractionated/whole CA, DS 0.49-2.92, viscosity-average MW ~1e5; published Tg-vs-DS fit equation", "conditions": "DSC of fractionated/whole CA, DS 0.49-2.92, viscosity-average MW ~1e5; published Tg-vs-DS fit equation", "conditions_detail": "DSC of fractionated/whole CA, DS 0.49-2.92, viscosity-average MW ~1e5; published Tg-vs-DS fit equation | test state: dry | MW (g/mol): 100000", "doi": "10.1295/polymj.17.919", "source_url": "https://www.nature.com/articles/pj198598", "year": "1985", "confidence": "medium", "comments": "\"Tg of CA fractions increases monotonously with a decrease in F as follows Tg(K)=523-20.3F\" — Published Tg-vs-DS relation (DSC), F = degree of substitution, valid over DS 0.49-2.92. e.g. DS 2.92 -> 463 K (190 C); DS 0.49 -> 513 K (240 C). Equation, not a single measured value. [Kamide K, Saito M, 1985, confidence: medium]" }, { "id": 560, "dataset": "cellulose", "entity": "cellulose triacetate", "entity_group": "cellulose acetate", "entity_class": "cellulose derivative", "property": "glass transition temperature", "property_key": "Tg", "value": "189.85", "unit": "C", "value_reported": "463", "unit_reported": "K", "method": "Model", "method_detail": "Computed from Kamide & Saito DSC fit Tg(K)=523-20.3*DS at DS=2.92 (near-fully-substituted = triacetate region)", "conditions": "Computed from Kamide & Saito DSC fit Tg(K)=523-20.3*DS at DS=2.92 (near-fully-substituted = triacetate region)", "conditions_detail": "Computed from Kamide & Saito DSC fit Tg(K)=523-20.3*DS at DS=2.92 (near-fully-substituted = triacetate region) | test state: dry | DS: 2.92 | MW (g/mol): 100000", "doi": "10.1295/polymj.17.919", "source_url": "https://www.nature.com/articles/pj198598", "year": "1985", "confidence": "medium", "comments": "\"Tg of CA fractions increases monotonously with a decrease in F as follows Tg(K)=523-20.3F\" — DS 2.92 is the highest substitution measured (essentially cellulose triacetate); Tg = 523 - 20.3*2.92 = 463 K (~190 C). Derived from the authors' own DSC fit, not an independent single measurement. [Kamide K, Saito M, 1985, confidence: medium]" } ] }