申请人:Pennwalt Corporation
公开号:US04101522A1
公开(公告)日:1978-07-18
A. A novel class of azo compounds R-N.dbd.N-R.sub.1 where R and/or R.sub.1 are groups containing an acylating function, e.g., acyl chloride, chloroformate or anhydride. Example: Cis-4,4'-Azobis-(4-cyanovaleryl chloride). B. a novel class of azo containing polymers (R'--N.dbd.N--C(R.sub.2)(R.sub.2 ') --R.sub.2 "--Y).sub.m --E--(Z).sub.n wherein R' is t-aliphatic, formed by reacting a polymer having at least one group reactive with an acyl group and a compound as in "A" containing only one acylating function. Example: the reaction product of 4-t-butylazo-4-cyanovaleryl chloride and hydroxyl terminated polybutadiene liquid resin. C. a novel class of azo containing polymers Z(E--Y--R.sub.2 "--C(R.sub.2)(R.sub.2 ')--N.dbd.N--C(R.sub.2)(R.sub.2 ')--R.sub.2 "--Y).sub.m' --E--Z, formed by the reaction of a compound as in "A" having two acylating functions with (1) a monomer having two acyl-reactive groups and a monomer having two acylating functions, or (2) a polymer having at least one acyl-reactive group. D. polymers B and C are useful in the production of block and graft polymers and in curing unsaturated polyester resin-vinyl monomer systems. Polymer C forms block and graft polymers with vinyl monomers with substantially no formation of homopolymers. These block and graft polymers are compatibilizing agents for solutions of homopolymers.
A. 一种新型偶氮化合物R-N.dbd.N-R.sub.1,其中R和/或R.sub.1是含有酰化功能的基团,例如酰氯、氯甲酸酯或酸酐。例如:顺式-4,4'-偶氮双-(4-氰基戊酰氯)。
B. 一种新型含偶氮基的聚合物(R'--N.dbd.N--C(R.sub.2)(R.sub.2 ')--R.sub.2 "--Y).sub.m --E--(Z).sub.n,其中R'是t-脂肪族,通过将至少具有一个与酰基反应的基团的聚合物与"A"中仅含有一个酰化功能的化合物反应而形成。例如:4-t-叔丁基偶氮-4-氰基戊酰氯和羟基终止的聚丁二烯液态树脂的反应产物。
C. 一种新型含偶氮基的聚合物Z(E--Y--R.sub.2 "--C(R.sub.2)(R.sub.2 ')--N.dbd.N--C(R.sub.2)(R.sub.2 ')--R.sub.2 "--Y).sub.m' --E--Z,通过将具有两个酰化功能的"A"类化合物与(1)具有两个酰反应基团的单体和具有两个酰化功能的单体或(2)至少具有一个酰反应基团的聚合物反应而形成。
D. 聚合物B和C可用于制备块状和嵌段聚合物以及固化不饱和聚酯树脂-乙烯单体体系。聚合物C与乙烯单体形成块状和嵌段聚合物,几乎不形成同聚物。这些块状和嵌段聚合物是同聚物溶液的相容剂。