Thermoreversible gels of chitin

被引：12

作者：

Bianchi, E ^{[1
]}

Marsano, E ^{[1
]}

Tacchino, A ^{[1
]}

机构：

[1] UNIV GENOA,DIPARTIMENTO CHIM & CHIM IND,GENOA,ITALY

来源：

CARBOHYDRATE POLYMERS | 1997年 / 32卷 / 01期

关键词：

D O I：

10.1016/S0144-8617(96)00114-2

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Gels of chitin have been obtained by heating solutions of the polymer in dimethylacetamide containing 5% of LiCl at T > 90 degrees C. The sol-gel transition is reversible and its temperature depends on the polymer concentration and, to a lesser extent, on the molecular weight. Pretransitional effects were observed by viscometry. A possible interpretation of the results, in terms of polymer-solvent interaction and the thermodynamics of the transformation, is suggested. (C) 1997 Elsevier Science Ltd.

引用

页码：23 / 26

页数：4

共 13 条

[1] MESOPHASE FORMATION AND CHAIN RIGIDITY IN CELLULOSE AND DERIVATIVES .4. CELLULOSE IN N,N-DIMETHYLACETAMIDE LITHIUM-CHLORIDE
BIANCHI, E
CIFERRI, A
CONIO, G
COSANI, A
TERBOJEVICH, M
[J]. MACROMOLECULES, 1985, 18 (04) : 646 - 650
[2] Bianchi E., 1990, Molecular Crystals and Liquid Crystals Letters Section, V7, P111
[3] Chitin-cellulose blends: Phase properties in dimethylacetamide-LiCl
Bianchi, E
Marsano, E
Baldini, M
Conio, G
Tealdi, A
[J]. POLYMERS FOR ADVANCED TECHNOLOGIES, 1995, 6 (12) : 727 - 732
[4] FLORY PJ, 1985, ADV POLYM SCI, V1, P59
[5] PHASE-BEHAVIOR OF AQUEOUS-SOLUTIONS OF HYDROXYPROPYLCELLULOSE
GUIDO, S
[J]. MACROMOLECULES, 1995, 28 (13) : 4530 - 4539
[6] PHASE-SEPARATION OF RIGID POLYMERS IN POOR SOLVENTS .1. (HYDROXYPROPYL)CELLULOSE IN WATER
LAREZV, C
CRESCENZI, V
CIFERRI, A
[J]. MACROMOLECULES, 1995, 28 (15) : 5280 - 5284
[7] Olabisi O., 1979, POLYM POLYM MISCIBIL
[8] CALORIMETRIC STUDY OF AQUEOUS-SOLUTIONS OF (HYDROXYPROPYL)CELLULOSE
ROBITAILLE, L
TURCOTTE, N
FORTIN, S
CHARLET, G
[J]. MACROMOLECULES, 1991, 24 (09) : 2413 - 2418
[9] GELATION PROCESS OF AMYLOSE-DMSO-WATER SYSTEM
TAKEYAMA, H
KOBAYASHI, M
YAJIMA, H
ENDO, R
KOHYAMA, K
NISHINARI, K
[J]. MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA, 1993, 76 : 83 - 88
[10] TERBOJEVICH M, 1988, CARBOHYD RES, V73, P180

← 1 2 →