Study on Polymer Dynamics in the vicinity of Critical Point of Ternary Polymer Solution by Luminescent Probe Method

本项目旨在利用发光探针法对三元聚合物溶液中的聚合物形态和动力学进行基础研究。(1)荧光探针法在溶液中聚合物表征评价方法的建立。形成了将个人计算机与各种光仪器（荧光分光光度计、单光子计数仪等）连接起来的新型仪器。该装置利用程序软件可获得聚合物侧链的旋转半径、节段平移扩散系数和旋转扩散系数的分析数据。(2)溶剂混合物中的聚合物动力学：在苯-环己烷混合物中，对含卡唑基的聚醋酸乙烯酯聚合物侧链的旋转半径、节段平移扩散系数和旋转扩散系数进行了计算，结果与我们的理论（F.Tanaka和l. ushiki）相符。大分子)。利用n - n -二甲基甲酰胺中含有蒽基和咔唑基的聚苯乙烯的大分子内光二聚化反应，研究了聚合物形态与动力学之间的关系。在此反应过程中，获得了大分子内光二聚化的两种类型的反应过程（短程和远程相互作用）。因此，聚合物动力学与聚合物形态密切相关。对于共聚物。聚合物在溶剂中也能产生临界现象和相变。(4)聚合物聚集在聚合物具有聚集基团的情况下，在三元聚合物溶液中可以产生大分子内和大分子间的聚集。目前高分子聚集的研究主要是利用发光探针法进行的。但我们目前正在研究聚合物溶液中的物理凝胶和水化理论。

The project aimed at the fundamental research of polymer morphology and dynamics in ternary polymer solution by luminescent probe method.(1) Establishment of Evaluation Method of Polymer Characterization in Solution by Luminescent probe methodA new apparatus was formed to connect between personal computer and various photo-apparatus (fluorescence spectrophotometer, single photon counting apparatus, etc.). This apparatus can be obtained the analyzed data of radius of gyration, coefficient of segmental translational diffusion, and coefficient of rotational diffusion of polymer side chain by using our program softs.(2) Polymer Dynamics in solvent MixturesThe results of radius of gyration, coefficient of segmental translational diffusion, and coefficient of rotational diffusion of polymer side chain of poly(vinyl acetate) having carbazolyl groups in benzene-cyclohexane mixtures were tried to correspond to our theory (F.Tanaka and ll.Ushiki. Macromolecules).(3) Molecular Motion of Photo-coss-linking PolymerThe relationship between polymer morphology and dynamics was investigated by using the lntramacromolecular photodimerization reaction of polystyrene having anthryl and carbazolyl groups in N.N-dimethylformamide. In this reaction process, the intramacromolecular photodimerization was obtained two type reaction processes (short and long range interaction). Therefore the polymer dynamics is intimately related to the polymer morphology. In the case of copolymer. the critical phenomena and phase transition of polymer can be produced even in a solvent.(4) Polymer AggregationIn the case of polymer having aggregating groups, the intra- and inter-macromolecular aggregations can be produced in ternary polymer solutions. At present the research of polymer aggregations is planned by using luminescent probe method. But We are studying the theory of physical gels and hydration in polymer solution.