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化学进展 2009, Vol. 21 Issue (0708): 1534-1545 前一篇   后一篇

• 综述与评论 •

树枝状大分子液晶的分子设计及其自组织超结构*

施泽华;舒鑫;谌东中**   

  1. (南京大学化学化工学院高分子科学与工程系 介观化学教育部重点实验室 南京 210093)
  • 收稿日期:2008-09-08 修回日期:2008-10-20 出版日期:2009-08-24 发布日期:2009-06-30
  • 通讯作者: 谌东中 E-mail:cdz@nju.edu.cn
  • 基金资助:

    国家自然科学基金

Rationally Designed Syntheses and Self-Organized Superstructure Investigations of Liquid Crystalline Dendrimers

Shi Zehua ;  |Shu Xin ;  |Chen Dongzhong**   

  1. (Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China)
  • Received:2008-09-08 Revised:2008-10-20 Online:2009-08-24 Published:2009-06-30
  • Contact: Chen Dongzhong E-mail:cdz@nju.edu.cn

树枝状大分子或树枝体由于其完美的拓扑结构和周边表面大量反应性的端基,成为一类理想的用于构筑结构新颖的大分子液晶材料的预组织骨架结构。本文按树枝状大分子骨架的化学结构分类,对侧链型树枝状大分子液晶的设计合成、液晶相行为及其自组织超结构的最新研究进展进行总结和评述,重点介绍了聚酰胺-胺、聚丙烯亚胺、聚碳硅烷、聚醚以及聚酯树枝状大分子液晶体系。近些年树枝状大分子液晶的系统研究发现了许多新颖液晶介晶相,极大地丰富了热致液晶相态的内涵,拓展了液晶研究范畴。研究表明通过合理的分子设计,通过对介晶基元、树枝体的化学结构及其代数的选择与调控,可以实现丰富多样的液晶介晶相乃至多级有序的自组织超结构。

Dendrimers or dendrons are ideal preorganized scaffolds for constructing novel liquid crystalline (LC) materials thanks to their perfect topologic structure and abundant reactive groups on the periphery. In this review, basically classified by the chemical construction of dendritic skeleton, mainly focusing on the polyamidoamine (PAMAM), polypropylene imine (PPI), polycarbosilane, polyether and polyester systems, the recent advances in the rationally designed syntheses and their self-organized superstructure of side-chain LC dendrimers have been summarized and commented. Recently the systematic investigations in the LC dendrimers have discovered plenty of novel LC mesophases and broadened the thermal LC concepts. It has been demonstrated that rich LC mesophases or even hierarchical superstructures can be achieved by tuning of the dendritic core chemical construction, dendrimer generation and the mesogenic units attached.

Contents
1 Introduction
2 Polyamidoamine liquid crystalline dendrimer
3 Polypropylene imine liquid crystalline dendrimer
4 Polycarbosilane liquid crystalline dendrimer
5 Polyether liquid crystalline dendrimer
6 Polyester liquid crystalline dendrimer
7 Other liquid crystalline dendrimer
8 Conclusion and outlook

中图分类号: 

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