摘要:
The properties of polymeric compositions can be improved by the presence of a polysiloxane unit of formula where Q is a substituted or unsubstituted aromatic group, D is unsubstituted or substituted hydrocarbylene R 1 , R 2 , R 3 , R 4 , R 5 and R 6 each, independently, is unsubstituted or substituted hydrocarbyl. x, y and z each independently has a value from 0 to 100. Polyimides containing these units display improved solubility and adhesion; they are useful, among other things, as protective coatings.
摘要翻译:通过存在式(CHEM)的聚硅氧烷单元可以提高聚合物组合物的性能,其中Q是取代或未取代的芳族基团,CH 2是未取代或取代的亚烃基R 1,R 2,R R 3,R 5和R 6各自独立地是未取代或取代的烃基。 x,y和z各自独立地具有0至100的值。含有这些单元的聚酰亚胺显示改善的溶解性和粘附性; 除其他外,它们作为保护涂层是有用的。