Alkylxanthate, production thereof, photopolymerization initiator, and polymerization employing the same
申请人:Tosoh Corporation
公开号:EP0450492A1
公开(公告)日:1991-10-09
Alkylxanthate compound having the general formula:
where R₁ is an alkyl group of 1 to 18 carbons. The compound is useful as an initiator of photopolymerization of various radical-polymerizable monomers, and produced by reacting an aliphatic alcohol having the general formula:
R₂OH
where R₂ is an alkyl group of 1 to 18 carbons with carbon disulfide, alkali metal hydroxide or alkali metal, and p-xylylene dichloride. Photopolymerization initiator comprising the alkylxanthate. Process for producing a polymer having a xanthate end group at the both ends, comprising irradiating ultraviolet ray to a mixture of the alkylxanthate and a radical-polymerizable monomer and chloroprene polymer having the general formula:
where R₁ is an alkyl group of 1 to 18 carbons; M is a chloroprene radical; n denotes the polymerization degree, and having a number-average molecular weight of from 1,000 to 15,000.
具有下列一般式的烷基黄酸盐化合物:其中R₁是1到18个碳原子的烷基基团。该化合物可用作各种自由基聚合单体的光聚合引发剂,并通过将具有下列一般式的脂肪醇与二硫化碳、碱金属氢氧化物或碱金属以及对二氯苯甲烷反应而制得:R₂OH,其中R₂是1到18个碳原子的烷基基团。包括烷基黄酸盐的光聚合引发剂。制备具有两端为黄酸盐末端基团的聚合物的方法,包括对烷基黄酸盐和自由基聚合单体的混合物进行紫外线辐照,以及具有下列一般式的氯丁橡胶:其中R₁是1到18个碳原子的烷基基团;M是氯丁基团;n表示聚合度,并具有1,000到15,000的数均分子量。