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一种新型的反式－７－［４－Ｎ，Ｎ－二（β－羟基乙基胺基苯）］－３，５－二硝基乙烯基－噻吩（ＨＢＤＴ）单体分子及对应的预聚物和聚脲烷被合成和表征．由于噻吩环的电子去局域化能量低于苯环，在受授有机共轭化合物中噻吩环比苯环表现出更有效的共轭和更高的非线性，同时也能使目标分子保持好的光、热稳定性．该单体分子及其对应的聚脲烷在普通有机溶剂中具有良好的可溶性，聚脲烷膜具有好的热稳定性．制备了高质量的聚脲烷膜并进行了电晕极化．单体在甲醇中的紫外可见吸收峰（５３０ｎｍ）与对应未经电晕极化聚脲烷膜的吸收峰基本上没有改变．通过溶剂变色法及简并四波混频（ＤＦＷＭ）法测试了单体的二阶和三阶非线性极化率，其βμ，χ（３）和γ值分别为８．４４３×１０－４５ｅｓｕ，１．０１６×１０－１２ｅｓｕ（ｃ＝３．９６×１０－３ｍｏｌ／Ｌ），３．９３×１０－３２ｅｓｕ
A novel trans-7- [4-N, N-bis (β-hydroxyethylaminobenzene)] -3,5-dinitroethenyl-thiophene (HBDT) Polymers and polyurethanes were synthesized and characterized. Since the electron de-localization energy of the thiophene ring is lower than that of the benzene ring, the thiophene ring shows more efficient conjugation and higher non-linearity than the benzene ring in the organic conjugated compound, and at the same time, the target molecule can be kept good Light, thermal stability. The monomer molecules and their corresponding polyurethanes have good solubility in ordinary organic solvents, and the polyurea film has good thermal stability. High quality polyurea films were prepared and corona polarized. The UV-vis absorption peak (530 nm) of the monomer in methanol is essentially unchanged from the corresponding non-corona-polarized polyurea membrane. The second and third order nonlinear polarizabilities of the monomers were tested by solvent discoloration method and degenerate four wave mixing (DFWM) method. Their βμ, χ (3) and γ values were 8.443 × 10-45esu , 1.016 × 10-12esu (c = 3.96 × 10-3mol / L), 3.93 × 10- 32esu