| 聚苯乙烯-聚甲基丙烯酸甲酯核-壳粒子的制备 |
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| 引用本文： | 周应学,赵振河.聚苯乙烯-聚甲基丙烯酸甲酯核-壳粒子的制备[J].应用化工,2009,28(2). |
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| 作者姓名： | 周应学 赵振河 |
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| 作者单位： | 西安工程大学,纺织与材料学院,高分子材料工程系,陕西,西安,710048 |
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| 基金项目： | 西安工程大学校管项目 |
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| 摘 要： | 由种子乳液聚合法制备了聚苯乙烯-聚甲基丙烯酸甲酯核-壳粒子。以过硫酸钾(KPS)为引发剂,辛基酚聚氧乙烯醚(OP-10)为乳化剂,合成了聚苯乙烯(PS)种子核;连续滴加甲基丙烯酸甲酯(MMA),在核表面富集MMA,制备了粒径范围在0.16~0.67μm的核-壳粒子;当单体苯乙烯与甲基丙烯酸甲酯(St/MMA)的比为30∶70(质量比)时,所得粒径在0.18μm,粒径分布为0.012。差示扫描量热(DSC)研究显示,复合粒子的玻璃化转变温度(Tg)为97.2℃,峰形单一,表现出良好的热性能。
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| 关 键 词： | 聚苯乙烯-聚甲基丙烯酸甲酯 核-壳粒子 种子乳液聚合 |
Preparation of polystyrene/poly(methyl methacrylate)core-shell latex particles |
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| ZHOU Ying-xue,ZHAO Zhen-he.Preparation of polystyrene/poly(methyl methacrylate)core-shell latex particles[J].Applied chemical industry,2009,28(2). |
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| Authors: | ZHOU Ying-xue ZHAO Zhen-he |
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| Abstract: | Polystyrene/poly(methyl methacrylate) core-shell latex particles were prepared by seed emulsion polymerization.Persulphate(KPS) as initiator,styrene(St) as monomer,OP-10 as emulsifier,the seed core latex emulsion was prepared;the latex as seed,seed emulsion polymerization through continuous dropping methyl methacrylate(MMA) was occurred to obtain core-shell PS/PMMA composite latex particles in diameter 0.16～0.67 μm by enriching MMA at core surface.As St/MMA ratio is 30/70(mass fraction),particles diameter is 0.18 μm,particle diameter distribution is 0.012,and the differential scanning calorimetry(DSC) indicated that glass transition temperature(Tg) is 97.2 ℃ during melting process and curve showed only one peak.The composite latex particle is achieved well thermal property. |
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| Keywords: | polystyrene/poly(methyl methacrylate) core-shell latex particles seed emulsion polymerization |
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