| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T1 |
0-88 |
Sentence |
denotes |
Structure and properties of sulfopropyl chitins prepared in NaOH/urea aqueous solutions. |
| T2 |
89-391 |
Sentence |
denotes |
A series of sulfopropyl chitins (SCs) with the degree of substitution (DS) ranging from 0.11 to 0.40 and high degree of acetylation (DA ≥ 0.82) were homogeneously synthesized by reacting chitin with sodium 3-chloro-2-hydroxypropanesulfonate (SCHPS) in NaOH/urea aqueous solutions under mild conditions. |
| T3 |
392-564 |
Sentence |
denotes |
The structure and properties of SCs were characterized with 1H NMR, CP/MAS 13C NMR, FT-IR, XPS, XRD, elemental analysis, GPC, AFM, ζ-potential and rheological measurements. |
| T4 |
565-744 |
Sentence |
denotes |
The mild reaction conditions resulted in less N-deacetylation and uniform structures with substitution occurring predominantly at the hydroxyl groups at C6 of the chitin backbone. |
| T5 |
745-817 |
Sentence |
denotes |
The DS value for SC soluble in dilute alkali solution is as low as 0.16. |
| T6 |
818-897 |
Sentence |
denotes |
SC exhibited good solubility in distilled water when its DS value reached 0.28. |
| T7 |
898-1041 |
Sentence |
denotes |
Water-soluble SCs self-assembled in water into micelles by the attractive hydrophobic and hydrogen-bonding interactions between polymer chains. |
| T8 |
1042-1173 |
Sentence |
denotes |
The water-insoluble SC-2 with lower DS could thermally form smart hydrogels at body temperature (37 °C) in physiological condition. |
| T9 |
1174-1274 |
Sentence |
denotes |
Moreover, the SCs exhibited good biocompatibility, making them suitable for biomedical applications. |