研究了以KOH为催化剂,二元或三元醇为起始剂,采用阴离子开环聚合合成淬火剂用共聚醚。 结果表明:产物的分子量随起始剂和杂质量的减少而增加;
The synthesis of oxyethylene oxypropylene copolyethers used for quenchant was studied by using anionic ring opening polymerization, diol or triol as the starting agent and KOH as the catalyst.
环状产物又在阴离子引发剂联苯双酚钾的作用下进行开环聚合重新得到高分子量的线性产物。
High molecular weight linear products were regenerated after the ring-opening polymerization of the cyclo-products using potassium phenoxide as initiator.
在微波辐射下,选择不同的阴离子引发剂使环氧乙烷开环聚合,缩短了反应时间。
Ethylene oxide was polymerized under microwave irradiation using some anionic as a initiator. The reaction time was shortened.
由1,3,5-三(甲基三氟丙基)环三硅氧烷的阴离子本体开环缩聚合成了氟硅生胶,并对生胶进行过氧化物交联。
Poly(methyl(trifluoropropyl) siloxane)(PMTFPS) was prepared by bulk ring-opening polymerization of 1,3,5-trimethyl-trifluoropropyl cyclotrisiloxane, and crosslinked by peroxide compound.
由1,3,5-三(甲基三氟丙基)环三硅氧烷的阴离子本体开环缩聚合成了氟硅生胶,并对生胶进行过氧化物交联。
Poly(methyl(trifluoropropyl) siloxane)(PMTFPS) was prepared by bulk ring-opening polymerization of 1,3,5-trimethyl-trifluoropropyl cyclotrisiloxane, and crosslinked by peroxide compound.
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