| 半刚性乙酰氧丙基纤维素的制备与液晶相转变的影响研究 |
| |
| 引用本文： | 聂康明,钟峰.半刚性乙酰氧丙基纤维素的制备与液晶相转变的影响研究[J].功能高分子学报,1999,12(1):15-18. |
| |
| 作者姓名： | 聂康明 钟峰 |
| |
| 作者单位： | [1]安徽大学化学化工学院化学系 [2]安徽大学应用化学研究所 |
| |
| 摘 要： | 以羟丙基纤维素为原料，通过酯化反应合成了分子量较高的乙酰氧丙基纤维素，并用ＦＴ－ＩＲ表征了化学结构。以ＤＳＣ，Ｘ－ｒａｙ衍射ＰＬＭ和ＳＡＬＳ手段研究了产物的热致液晶相转变及其影响因素和溶致液晶性。实验表明，产物的乙酰基含量受合成温度和反应时间影响，其热致液晶的相转变温度和温域随乙酰基含量变化。
|
| 关 键 词： | 乙酰氧丙基 纤维素 液晶 衍生物 热致液晶 |
Study on Preparation of Semiflexible Acetoxy Propyl Cellulose and the Liquid Crystalline Phase Transition |
| |
| Nie Kangming,Zhang Yuchuan,Zhong Feng.Study on Preparation of Semiflexible Acetoxy Propyl Cellulose and the Liquid Crystalline Phase Transition[J].Journal of Functional Polymers,1999,12(1):15-18. |
| |
| Authors: | Nie Kangming Zhang Yuchuan Zhong Feng |
| |
| Institution: | Nie Kangming 1 Zhang Yuchuan 1 Zhong Feng 2 |
| |
| Abstract: | Acetoxy propyl cellulose (APC) was prepared by ester reation with hydroxy propyl cellulose(HPC) as raw material. The chemical structure of products were characterized by FT-IR. APC thermotropic liquid crystalline phase transition, the texture of APC/DBP lyotropic liquid crystal and influence were studied by DSC, PLM, X-ray diffraction and SALS. The experimental results indicated that reaction temperature and time were influence on acetyl content of APC products. Liquid crystalline phase transition changed with acetyl content .Solution of APC in dibutyl phthalate (DBP) containing more than 75 wt% formed spherulite cholesteric liquid crystalline phase. |
| |
| Keywords: | acetoxy propyl cellulose preparation liquid crystal |
| 本文献已被 CNKI 维普 等数据库收录！ |
