THERMAL TRANSITION CONTROL OF CHOLESTERIC LIQUID CRYSTALLINE SIDE CHAIN TERPOLY(OLEFIN SULPHONE)S CONTAINING 1 HEPTENE MOIETIES

WU Yiguang; SZETO Yaushan; CHAN Winglai; CHEN Yuzhong

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THERMAL TRANSITION CONTROL OF CHOLESTERIC LIQUID CRYSTALLINE SIDE CHAIN TERPOLY(OLEFIN SULPHONE)S CONTAINING 1 HEPTENE MOIETIES

Research Article | 更新时间：2021-03-19

- THERMAL TRANSITION CONTROL OF CHOLESTERIC LIQUID CRYSTALLINE SIDE CHAIN TERPOLY(OLEFIN SULPHONE)S CONTAINING 1 HEPTENE MOIETIES
- Acta Polymerica Sinica Issue 6, Pages: 690-694(1997)
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- Published：20 December 1997，
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WU Yiguang, SZETO Yaushan, CHAN Winglai, CHEN Yuzhong. THERMAL TRANSITION CONTROL OF CHOLESTERIC LIQUID CRYSTALLINE SIDE CHAIN TERPOLY(OLEFIN SULPHONE)S CONTAINING 1 HEPTENE MOIETIES. [J]. Acta Polymerica Sinica (6):690-694(1997)
DOI：

WU Yiguang, SZETO Yaushan, CHAN Winglai, CHEN Yuzhong. THERMAL TRANSITION CONTROL OF CHOLESTERIC LIQUID CRYSTALLINE SIDE CHAIN TERPOLY(OLEFIN SULPHONE)S CONTAINING 1 HEPTENE MOIETIES. [J]. Acta Polymerica Sinica (6):690-694(1997) DOI：

摘要

合成并用红外光谱法、核磁共振法和高效凝胶渗透色谱法表征了胆甾（烷）醇十一碳烯酸酯分别与庚烯-１、二氧化硫进行自由基共聚合得到的一系列不同组成的三元胆甾型侧链液晶共聚砜

用温控式偏振光显微镜观测了产物的液晶性能．结果表明：随庚烯-１单体单元组份含量的增加

该三元共聚砜的液晶相转变温度均降低

采用庚烯-１单体参与共聚的方法可以有效地调节胆甾型侧链液晶共聚砜的热转变温度．

Abstract

A series of cholesteric liquid crystalline side chain terpoly(olefin sulphone)s with different composition have been prepared from cholesteryl (or/and cholestanyl) 10 undecenoate

heptene 1 and sulphur dioxide. The structures of these terpolymers have been characterised with FTIR

1H NMR

HPGPC and LC properties measured by polarising microscope. The experimental results showed that each series of terpolymers are significantly lowered as the proportion of heptene 1 residues increases within the polymeric mass.

关键词

庚烯-１侧链液晶高分子聚砜热转变温度

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