A calorimetric study of methylcellulose gelation

被引：104

作者：

Desbrieres, J ^{[1
]}

Hirrien, M ^{[1
]}

Rinaudo, M ^{[1
]}

机构：

[1] Univ Grenoble 1, CNRS, Ctr Rech Macromol Vegetales, F-38041 Grenoble 9, France

来源：

CARBOHYDRATE POLYMERS | 1998年 / 37卷 / 02期

关键词：

methylcellulose; gelation; calorimetry;

D O I：

10.1016/S0144-8617(98)00023-X

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Thermograms of methylcellulose solutions have been obtained using samples with different distributions of methyl substituents. It is concluded that hydrophobic interactions between zones of highly substituted units are at the origin of the gelation. A minimal value of the degree of substitution (equal to 1.2) is demonstrated to be necessary for the gelation to be observed either from enthalpy calculations or by calorimetric experiments. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：145 / 152

页数：8

共 22 条

[11]

JENCKS WP, 1969, CATALYSIS CHEM ENZYM, P401

[12] MELTING TEMPERATURES OF THERMALLY REVERSIBLE GELS .4. METHYL CELLULOSE-WATER GELS [J].

KATO, T ;

YOKOYAMA, M ;

TAKAHASHI, A .

COLLOID AND POLYMER SCIENCE, 1978, 256 (01) :15-21

[13]

Khomutov L. I., 1993, POLYM SCI, V35, P320

[14]

MORAWETZ H, 1975, MACROMOLECULES SOLUT, P78

[15]

PARFONDRY A, 1977, CARBOHYD RES, V57, P39, DOI 10.1016/S0008-6215(00)81918-7

[16]

REES DA, 1972, CHEM IND-LONDON, P630

[17] THERMAL GELATION PROPERTIES OF METHYL AND HYDROXYPROPYL METHYLCELLULOSE [J].

SARKAR, N .

JOURNAL OF APPLIED POLYMER SCIENCE, 1979, 24 (04) :1073-1087

[18] HYDRATION DEHYDRATION PROPERTIES OF METHYLCELLULOSE AND HYDROXYPROPYLMETHYLCELLULOSE [J].

SARKAR, N ;

WALKER, LC .

CARBOHYDRATE POLYMERS, 1995, 27 (03) :177-185

[19]

SAVAGE AB, 1963, CELLULOSE CELLULOS 2, P904

[20] C-13-NMR SPECTRAL STUDIES ON THE DISTRIBUTION OF SUBSTITUENTS IN SOME CELLULOSE DERIVATIVES [J].

TAKAHASHI, SI ;

FUJIMOTO, T ;

BARUA, BM ;

MIYAMOTO, T ;

INAGAKI, H .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1986, 24 (11) :2981-2993

← 1 2 3 →