| 核壳结构PB-g-(SAN-co-Si)抗冲改性剂的合成与表征 |
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| 引用本文： | 尹德忠,张秋禹,张和鹏,尹常杰. 核壳结构PB-g-(SAN-co-Si)抗冲改性剂的合成与表征[J]. 高分子材料科学与工程, 2010, 26(9) |
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| 作者姓名： | 尹德忠 张秋禹 张和鹏 尹常杰 |
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| 作者单位： | 西北工业大学理学院,陕西,西安,710072;西北工业大学理学院,陕西,西安,710072;西北工业大学理学院,陕西,西安,710072;西北工业大学理学院,陕西,西安,710072 |
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| 摘 要： | 采用种子乳液聚合法,在聚丁二烯(PB)乳液接枝苯乙烯-丙烯腈(SAN)的同时,加入γ-(甲基丙烯酰氧基)丙基三甲氧基硅烷(KH-570),制备了带有缩合反应活性基团的聚丁二烯接枝(苯乙烯-丙烯腈-有机硅)共聚物(PB-g-(SAN-co-Si)大分子改性剂。采用透射电镜(TEM)、傅立叶变换红外光谱(FT-IR)和SAN接枝率测定等方法对产物进行了表征。TEM显示乳胶粒具有典型的核壳结构,粒径为300nm,乳胶粒外分布有KH-570水解缩合形成的纳米硅粒子。FT-IR分析证实KH-570通过化学键接枝到PB链上。除通过自由基聚合外,SAN的接枝还可通过KH-570之间的水解缩合方式进行,KH-570的引入大幅度提高了接枝效率。
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| 关 键 词： | 聚丁二烯接枝(苯乙烯-丙烯腈-有机硅)共聚物 抗冲改性剂 核壳乳液 种子乳液聚合 |
Synthesis and Characterization of Impact Modifier PB-g-(SAN-co-Si) with Core-Shell Structure |
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| YIN De-zhong,ZHANG Qiu-yu,ZHANG He-peng,YIN Chang-jie. Synthesis and Characterization of Impact Modifier PB-g-(SAN-co-Si) with Core-Shell Structure[J]. Polymer Materials Science & Engineering, 2010, 26(9) |
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| Authors: | YIN De-zhong ZHANG Qiu-yu ZHANG He-peng YIN Chang-jie |
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| Affiliation: | YIN De-zhong,ZHANG Qiu-yu,ZHANG He-peng,YIN Chang-jie(College of Science,Northwest Polytechnical University,Xi'an 710072,China) |
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| Abstract: | A new macromolecular modifier polybutadiene-grafting styrene/acrylonitrile/silicon tetracopolymer (PB-g-(SAN-co-Si))was synthesized by grafting styrene(St),acrylonitrile(An) and methacryloxypropyltrimethoxysilane (KH-570) onto polybutadiene(PB) latex particles via seeded emulsion polymerization technique. The tetracopolymer was characterized by transmission electron microscopy(TEM),Fourier transformation infrared spectrum (FT-IR) and grafting efficiency of St-An copolymer(SAN). TEM study indicates that late... |
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| Keywords: | PB-g-(SAN-co-Si) impact modifier core-shell emulsion seeded emulsion polymerization |
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