Chitosan as matrix for bio-polymer dispersed liquid crystal systems

被引：38
|
作者：
Marin, Luminita [1 ]
Popescu, Maria-Cristina [1 ]
Zabulica, Andrei [1 ]
Uji-, Hiroshi, I [2 ]
Fron, Eduard [2 ]
机构：
[1] Romanian Acad, Petru Poni Inst Macromol Chem, Iasi, Romania
[2] Katholieke Univ Leuven, Dept Chem, Lab Photochem & Spect, B-3001 Heverlee, Belgium
来源：
CARBOHYDRATE POLYMERS | 2013年 / 95卷 / 01期
关键词：
Chitosan; 4-Cyano-4 '-pentylbiphenyl; Anchoring effect; Ordering coupling at interface; Radial configuration; PHASE-SEPARATION; PHOTOLUMINESCENCE; POLYSULFONE; HYDROGELS; BEHAVIOR; CHITIN;
D O I：
10.1016/j.carbpol.2013.02.028
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The obtaining of bio-polymer dispersed liquid crystal (bio-PDLC) systems based on a chitosan polymer matrix is reported here for the first time. The new PDLC composites have been obtained by encapsulation of 4-cyano-4'-pentylbiphenyl (5CB) as low molecular weight liquid crystal into chitosan, and they have been characterized by polarized optical microscopy, differential scanning calorimetry, electron and transmission scanning microscopy, Raman and fluorescence spectroscopy. Submicrometric liquid crystalline droplets with uniform size distribution and density have been obtained for low liquid crystal content into the PDLCs. The droplets have a radial configuration being anchored into chitosan matrix by an interface ordering coupling phenomenon. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：16 / 24
页数：9
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