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MODIFICATIONS OF SILOXANE POLYMERS

机译:硅氧烷聚合物的改性

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The methods of synthesis of polysiloxanes of regular structure and their modifications resulted from side groups' reactions(Scheme A)were presented.Especially siloxanes with vinyl groups were characterized.They are used for controlled syntheses of organosilicone macromolecular compounds(Scheme B)of various architecture - linear,grafted,hyperbranched and star copolymers.There was described one of new promising methods of polysiloxane chain modification i.e.reaction of silylative coupling(Scheme C and D)allowing obtaining new polymers showing liquid crystalline properties or non-linear optical ones.The applications of polymethylvinylsiloxanes as polymeric catalysts' supports,e.g.palladium,platinum or rhodium complexes(Scheme H),were also presented.The syntheses of catalysts supported on polysiloxanes of various structures have been discussed as well as preliminary results of investigations of catalytic systems activities in model reactions of hydrosilyla-tion or Heck reaction(Scheme G).
机译:提出了结构规整的聚硅氧烷的合成方法和由侧基反应引起的改性(方案A)。特别是对具有乙烯基的硅氧烷进行了表征。它们用于各种结构的有机硅大分子化合物的受控合成(方案B)。 -线性,接枝,超支化和星形共聚物。描述了一种新的有前途的聚硅氧烷链改性方法,即甲硅烷基化偶联反应(方案C和D),从而获得显示液晶性质或非线性光学性质的新聚合物。提出了以聚甲基乙烯基硅氧烷为载体的催化剂,如钯,铂或铑配合物(方案H)。讨论了各种结构的聚硅氧烷载体上负载的催化剂的合成,以及模型中催化体系活性研究的初步结果。氢化硅烷化反应或Heck反应(方案G)。

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