The optical activity of the system cellulose acetate - Mesophasogenic solvent in the formation of a lyotropic liquid-crystalline phase

被引:0
作者
Shipovskaya, AB
Kazmicheva, OF
Timofeeva, GN
机构
[1] Chernyshevsky State Univ, Saratov 410026, Russia
[2] Chernyshevsky State Univ, Inst Chem, Saratov 410026, Russia
来源
BIOFIZIKA | 2006年 / 51卷 / 02期
关键词
natural polysaccharide; cellulose acetates; optical activity; lyotropic liquid-crystalline phase; mesophasogenic solvent; DNA;
D O I
暂无
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
Vapors of a mesophasogenic solvent (which can form an liquid-crystalline phase with the polymer) have been found to actively affect the spatial structure and optical activity of natural polysaccharides (cellulose acetates). This process is accompanied by variations of the specific optical rotation value [alpha] within wide limits, including the inversion of the sign of [alpha]. The action of vapors obeys the dosage-effect rule, with lower doses producing a stronger effect. It was supposed that this approach can be applied to study the structural peculiarities of biopolymers such as DNA.
引用
收藏
页码:256 / 266
页数:11
相关论文
共 25 条
[1]   RIGID BACKBONE POLYMERS .13. EFFECTS OF THE NATURE OF THE SOLVENT ON THE LYOTROPIC MESOMORPHICITY OF CELLULOSE-ACETATE [J].
AHARONI, SM .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1980, 56 (07) :237-241
[2]  
BELNIKEVICH NG, 1983, VYSOKOMOL SOEDIN A+, V25, P119
[3]  
BELNIKEVICH NG, 1978, VYSOKOMOL SOEDIN B, V20, P37
[4]  
FOMENKO BA, 1969, VYSOKOMOL SOEDIN A, V11, P1971
[5]  
FRIDMAN OA, 1982, VYSOKOMOL SOEDIN A+, V24, P512
[6]   CHEMICAL CHARACTERISTICS OF CELLULOSIC LIQUID-CRYSTALS [J].
GRAY, DG .
FARADAY DISCUSSIONS, 1985, 79 :257-264
[7]  
KHARATISHVILI MG, 1985, BIOFIZIKA+, V30, P701
[8]  
Kulichikhin V. G., 1985, KHIM DREV, P9
[9]  
Malkin A.Ya., 1979, DIFFUZIYA VYAZKOST P
[10]  
MREVLISHVILI GM, 1982, BIOFIZIKA+, V27, P987