中文摘要：

合成窄分子量分布的廿乙烯基聚（氟）硅氧烷是制备结构可控的侧链为有机（氟）硅氧烷两亲性梳形聚合物的关键。文中以丁基锂为引发剂，进行了D3和F3的活性阴离子开环聚合。通过实验发现在0℃条件下，用两步聚合法，封端时间11．00h为较优的开环聚合条件。在此条件下制备了不同聚合度的、窄分子量分布的α-乙烯基聚二甲基硅氧烷和α-乙烯基聚[甲基（3’，3’，3’-三氟丙基）]硅氧烷，聚合物分子量分布在1．15以下。

英文摘要：

The synthesis of a-vinyl organosiloxane and fluorinated siloxane polymer was the key to prepare the amphiphilic polymer containing organosiloxane and fluorinated organosiloxane side chain with well-defined structure. Living anionic ring opening polymerization of D3 and F3 initiated by BuLl were carried out in this paper. The optimal reaction condition were founded , in which the polymerization temperature is 0 ℃, the feeding is divided into two steps, the capping time is 11.00 h. a-vinyl poly （dimethyl siloxane） and α-vinyl poly [ methyl （3＇, 3＇, 3＇- trifluoropropyl）cyclotrisiloxane]with different polymerization degree and narrow molecular weight distribution were prepared under these conditions. The molecular weight distribution of polymer is below 1.15.