PURPOSE:To produce a rubbery solid copolymer giving a crosslinked product having excellent oil resistance, freeze resistance, ozone resistance, etc., by polymerizing a carboxylic acid glycidyl ester, an allyl glycidyl ether and an ethylenic epoxide in the presence of an organotin-phosphoric acid ester catalyst. CONSTITUTION:The objective rubbery solid copolymer is a polyether having a reduced viscosity of =0.5 measured as 0.1% monochlorobenzene solution at 80 deg.C, and composed of the structural units of formula I - formula III (R is 1-4C alkyl; R1 is H or methyl; X is halogen), wherein the composition of the polyether is 35-90mol% glycidyl ester of a 2-5C saturated aliphatic carboxylic acid, 1-20% allyl glycidyl ether and =5% ethylenic epoxide in terms of monomer units. The copolymerization is carried out in the presence of a catalyst obtained by the thermal condensation of an organotin compound with an alkyl ester of orthophosphoric acid of polyphosphoric acid.
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机译:用途:通过在有机锡-磷酸酯的存在下,使羧酸缩水甘油酯,烯丙基缩水甘油醚和烯属环氧化物聚合,生产一种橡胶状固体共聚物,该交联产物具有优异的耐油性,耐冷冻性,耐臭氧性等。酸酯催化剂。组成:目标橡胶状固体共聚物是一种聚醚,其在80℃下以0.1%一氯苯溶液测量的比浓粘度> = 0.5,并且由式I-式III的结构单元组成(R为1-4C烷基; R 1是H或甲基; X是卤素),其中聚醚的组成是2-5C饱和脂族羧酸的35-90mol%的缩水甘油酯,1-20%的烯丙基缩水甘油醚和≥5%的烯属以单体单元表示的环氧化物。在通过有机锡化合物与多磷酸的正磷酸的烷基酯的热缩合获得的催化剂的存在下进行共聚。
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