摘要:
A method for preparing p-(2-hydroxyalkyloxy)styrene monomers and oligomers is described. The method comprises a base-catalyzed reaction of a styrene ester, a suitable alcohol and an alkylene oxide in a single vessel reaction. In this method, the reactive p-hydroxystyrene is generated in situ via the base-catalyzed transesterification reaction between the styrene ester and the alcohol in the presence of the base catalyst. The p-hydroxystyrene formed reacts with the alkylene oxide to form the p-(2-hydroxyalkyloxy)styrene monomer or oligomer.
摘要:
The invention discloses a composition consisting essentially of an E/X/M random copolymer wherein X is from 0.1 to 20 mol % of the E/X/M copolymer and is a 4-vinylphenyl ester, preferably 4-acetoxystyrene; M is from 0 to 40 mol % of the E/X/M copolymer and is one or more ethylenically unsaturated monomers; and E is ethylene. The invention further encompasses a high pressure radical polymerization process for providing the novel polymers; and a base catalyzed transesterification process for conversion of the E/X/M copolymer to an E/Y/M copolymer wherein Y is derived from 4-hydroxystyrene. Another embodiment of the invention is a composition consisting essentially of an E/Y/M random copolymer wherein Y is greater than 1.0 to about 20 mol % of the E/Y/M copolymer and is 4-hydroxystyrene; M is from 0 to 40 mol % of the E/Y/M copolymer and is one or more ethylenically unsaturated monomers; and E is ethylene.
摘要翻译:本发明公开了一种基本上由E / X / M无规共聚物组成的组合物,其中X为E / X / M共聚物的0.1-20摩尔%,是4-乙烯基苯基酯,优选4-乙酰氧基苯乙烯; M为E / X / M共聚物的0〜40摩尔%,为一种或多种烯属不饱和单体; E是乙烯。 本发明还包括用于提供新型聚合物的高压自由基聚合方法; 以及用于将E / X / M共聚物转化成其中Y衍生自4-羟基苯乙烯的E / Y / M共聚物的碱催化酯交换方法。 本发明的另一个实施方案是基本上由E / Y / M无规共聚物组成的组合物,其中Y大于E / Y / M共聚物的1.0至约20mol%且为4-羟基苯乙烯; M为0〜40摩尔%的E / Y / M共聚物,为一种或多种烯属不饱和单体; E是乙烯。
摘要:
A solution grafting method for making polyolefin graft polymers by grafting a phenolic ester monomeric compound on olefinic polymers in the presence of a radical initiator in an organic solvent is described. The grafted polymers provide improved adhesion properties, particularly to metal and polyester substrates.
摘要:
A method is provided for the thermal decarboxylation of a phenolic substrate in the presence of a non-amine basic catalyst to produce a vinyl monomer. The product of the decarboxylation reaction may additionally be acetylated in the presence of an acetylating agent in the same reaction vessel.
摘要:
A method is provided for the thermal decarboxylation of a phenolic substrate in the presence of a non-amine basic catalyst to produce a vinyl monomer. The product of the decarboxylation reaction may additionally be acetylated in the presence of an acetylating agent in the same reaction vessel.