PHASE INVERSION DURING BULK   COPOLYMERIZATION OF   N  -PHENYLMALEIMIDE/STYRENE IN   PRESENCE OF POLYBUTADIENE (Ⅱ)  EFFECTS OF OPERATION CONDITIONS AND RECIPES ON OCCURRENCE   OF PHASE INVERSION AND STRUCTURE OF RUBBER PHASE

陈媛; 李宝芳; 曹堃; 李伯耿

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PHASE INVERSION DURING BULK COPOLYMERIZATION OF N -PHENYLMALEIMIDE/STYRENE IN PRESENCE OF POLYBUTADIENE (Ⅱ) EFFECTS OF OPERATION CONDITIONS AND RECIPES ON OCCURRENCE OF PHASE INVERSION AND STRUCTURE OF RUBBER PHASE

更新时间：2025-12-16

- PHASE INVERSION DURING BULK COPOLYMERIZATION OF N -PHENYLMALEIMIDE/STYRENE IN PRESENCE OF POLYBUTADIENE (Ⅱ) EFFECTS OF OPERATION CONDITIONS AND RECIPES ON OCCURRENCE OF PHASE INVERSION AND STRUCTURE OF RUBBER PHASE
- CIESC Journal Issue 4, (2000)
- 作者机构：
  
  浙江大学化工系聚合反应工程国家重点实验室!杭州310027,浙江大学化工系聚合反应工程国家重点实验室!杭州310027,浙江大学化工系聚合反应工程国家重点实验室!杭州310027,浙江大学化工系聚合反应工程国家重点实验室,杭州,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q322.4
- Online First：25 August 2000，
  
  Published：25 August 2000
- 稿件说明：
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陈媛, 李宝芳, 曹堃, et al. PHASE INVERSION DURING BULK COPOLYMERIZATION OF N -PHENYLMALEIMIDE/STYRENE IN PRESENCE OF POLYBUTADIENE (Ⅱ) EFFECTS OF OPERATION CONDITIONS AND RECIPES ON OCCURRENCE OF PHASE INVERSION AND STRUCTURE OF RUBBER PHASE[J]. CIESC Journal, 2000, (4).
DOI：

陈媛, 李宝芳, 曹堃, et al. PHASE INVERSION DURING BULK COPOLYMERIZATION OF N -PHENYLMALEIMIDE/STYRENE IN PRESENCE OF POLYBUTADIENE (Ⅱ) EFFECTS OF OPERATION CONDITIONS AND RECIPES ON OCCURRENCE OF PHASE INVERSION AND STRUCTURE OF RUBBER PHASE[J]. CIESC Journal, 2000, (4). DOI：

摘要

进行了N -苯基马来酰亚胺 (PMI) /苯乙烯 (St)在聚丁二烯 (PB)存在下的半连续本体共聚合

研究了聚合的操作条件及配方对聚合过程中的相转变及转相后橡胶相结构的影响 .发现提高搅拌转速使相转变提前

升高聚合温度、增加引发剂用量、提高PMI及橡胶含量都使转相期延迟 .降低搅拌转速、提高聚合温度和橡胶含量易使橡胶相粒径增大

表观接枝率上升 .在一定范围内提高过氧化二苯甲酰 (BPO)浓度也将使接枝率上升

但PMI的引入不利于单体在橡胶上的接枝 .

Abstract

To prepare the high impact polystyrene with good heat resistance

semi-continuous bulk copolymerization of N -phenylmaleimide (PMI) and styrene in the presence of polybutadiene(PB) was carried out in a 2 L stirred tank reactor with a double helical impeller. The effects of polymerization conditions on phase inversion and micro - structure of rubber phase were investigated. It was found that the higher the polymerization temperature and concentrations of PB

initiator and PMI

the earlier the phase inversion occurred

but with raised agitation rate in a later phase inversion. The effects of polymerization technology on the structure of rubber phase

such as particle size

subcontainings in rubber particles

indicate that raising agitation rate

polymerization temperature and the concentration of PB cause higher grafting ratio and larger rubber particles. An increase in the concentration of initiator

BPO

is favorable to raising the grafting ratio. However

an introduction of PMI reduces the value.

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