三元偏氯乙烯/丙烯腈/苯乙烯悬浮共聚树脂的合成  

Synthesis of Vinylidene Chloride/Acrylonitrile/Styrene Suspension Terpolymer

作　　者：周树学[1] 黄志明[1] 单国荣[1] 翁志学[1] 

机构地区：[1]浙江大学高分子科学与工程研究所,杭州310027

出　　处：《塑料工业》2000年第6期10-12,共3页China Plastics Industry

基　　金：浙江省自然科学基金!资助项目 (批准号 5 980 6 2 )

摘　　要：以偶氨二异丁腈 (AIBN)作引发剂 ,合成了偏氯乙烯 (VDC) /丙烯腈 (AN ) /苯乙烯 (St)三元悬浮共聚树脂。在聚合过程中 ,压力先逐步升高后下降。当悬浮聚合质量投料比为 6 0∶15∶2 5 (VCD/AN /St)时 ,其压力转变点的转化率约为 5 5 %～6 5 %。聚合得到的三元VDC AN St悬浮共聚树脂为球形半透明颗粒 ,重均粒径约为 5 0 .5 6 μm。合成的悬浮液中存在数量较多的微小粒子 ,加入NaNO2 可减少其生成量。s Vinylidene chloride(VDC)/acrylonitrile(AN)/styrene(St) suspension terpolymer was synthesized with AIBN as initiator.In the suspension polymerization process,the vapor pressure increased gradually and then decreased,and the turning point of pressure located at the conversion of about 55-65% when the feeding ratio was 60∶15∶25(VDC/AN/St).The obtained resin was spherical transparent particle with weight average diameter 50.5μm.A number of fine particles also existed in the suspension product and could be reduced by adding NaNO 2.

关 键 词：偏氯乙烯 丙烯腈 苯乙烯 悬浮聚合 共聚树脂 

分 类 号：O632.12[理学—高分子化学]