Isotropic transition of amphiphilic side-chain type liquid crystalline di-block copolymers

被引：4
作者：
Yamada, T.
Boyer, S. A. E.
Iyoda, T.
Yoshida, H.
Grolier, J. -P. E.
机构：
[1] Tokyo Metropolitan University,Graduate School of Engineering
[2] Université Blaise Pascal,Laboratoire de Thermodynamique des Solutions et des Polymères
[3] CREST Japan Science and Technology (JST),Chemical Resources Laboratory
[4] Tokyo Institute of Technology,Faculty of Urban Environmental Science
[5] Tokyo Metropolitan University,undefined
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2007年 / 89卷 / 01期
关键词：
block copolymer; liquid crystal; nitrogen; pressure effect; transitiometry;
D O I：
10.1007/s10973-006-8451-z
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The effects of nitrogen (N2) pressure on amphiphilic di-block copolymer, PEO114-b-PMA(Az)40, were investigated by scanning transitiometry. The isotropic transition temperature increased with the increase of pressure above 20 MPa. The hydrostatic pressure effects evaluated with the Clapeyron equation were smaller than the value obtained by mercury as a pressurizing medium because the amount of absorbed gas decreases the volume change at the isotropic transition.
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页码：9 / 12
页数：4
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