中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (6): 54-56.

• 研究论文 • 上一篇    下一篇

从多羟基低聚物出发合成交联型二阶非线性光学聚合物

王全伏, 景遐斌, 王化滨, 汪冬梅, 韩孝族   

  1. 中国科学院长春应用化学研究所高分子物理联合开放实验室, 长春 130022
  • 收稿日期:1997-03-28 修回日期:1997-08-08 出版日期:1997-12-10 发布日期:1997-12-10
  • 基金资助:
    国家自然科学基金

Synthesis of the Second-Order Nonlinear Optical Polymers Based on Crosslinked Multihydroxyloligomers

Wang Quanfu, Jing Xiabin, Wang Huabin, Wang Dongmei, Han Xiaozu   

  1. Polymer Physics Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1997-03-28 Revised:1997-08-08 Published:1997-12-10 Online:1997-12-10

PDF

496

被引次数

2

摘要： 二阶非线性光学(NLO)聚合物具有许多优点, 如快响应速度, 低介电常数, 高非线性光学系数和良好的机械加工性能等[1]. 大多数掺杂型和键合型 NLO 聚合物在极化后表现出较快的NLO活性衰减[2, 3], 采用电场极化交联将NLO生色基团固定在交联聚合物的网络中, 可提高NLO生色基团的取向稳定性[4, 5]. 本文用硝基苯胺和 4-氨基-4'-硝基联苯与环氧双酚A反应, 生成多羟基低聚物, 然后用邻苯二甲酰氯和甲苯-2, 4-二异氰酸酯在电场下进行极化交联,生成相应的交联型二阶 NLO 聚合物, 用红外光谱跟踪了交联过程, 用紫外可见吸收光谱研究了极化取向及取向稳定性。

关键词: 羟基低聚物, 非线性光学, 交联聚合物, 合成

Abstract: P-Nitroaniline and 4-amino-4'-nitrobiphenyl were reacted separately with diglycidylbisphenol A to gain multihydroxyl oligomers. The two oligomers were crosslinked with o-phthaloxyl dichloride and toluene-2,4-diisocyanate to produce corresponding cross-linking polymers. Poling and crosslinking were carried out at the same time. The crosslinking reactions were studied by FT-IR. The orientation and stability of the crosslinked poled polymers were studied by UV-Vis spectra. The crosslinked polymers based on nitro-biphenyl amine unit exhibit lower original orientation degree, but better orientational stability at 80℃.

Key words: hydoxyl-containing oligomer, nonlinear optics, crosslinked polymer, synthesis

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