Solution properties and mesophase formation of 4-phenyl-benzoylcellulose

被引：10

作者：

Terbojevich, M

Cosani, A

Focher, B

Gastaldi, G

Wu, W

Marsano, E

Conio, G

机构：

[1] Univ Padua, Dipartimento Chim Organ, I-35131 Padua, Italy

[2] Staz Sperimentale Cellulosa & Carta, I-20133 Milan, Italy

[3] Univ Genoa, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy

[4] CNR, IMAG, I-16149 Genoa, Italy

来源：

CELLULOSE | 1999年 / 6卷 / 01期

关键词：

cellulose derivatives; light scattering; mesophase; C-13-NMR spectroscopy;

D O I：

10.1023/A:1009271108212

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Cellulose samples were derivatized in dimethylacetamide/LiCl (DMAc/LiCl) to give 4-phenyl-benzoylcelluloses (PBCs). The process is quantitative and leads to an highly substituted product, as verified by elemental analysis, IR and C-13-NMR spectroscopy. PBC samples were characterized by viscometric and light scattering measurements in DMAc. The persistance length q is used to evaluate the theoretical critical volume fraction for mesophase formation (v(th)(')), which has been found higher than the experimental critical one (v(exp)(')).

引用

页码：71 / 87

页数：17

共 28 条

[1] MESOPHASE FORMATION AND CHAIN RIGIDITY IN CELLULOSE AND DERIVATIVES .2. (HYDROXYPROPYL)CELLULOSE IN DICHLOROACETIC ACID [J].