| POSS和PS/POSS共聚物的合成及表征 |
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| 引用本文： | 苟军旗,陈广新,李齐方.POSS和PS/POSS共聚物的合成及表征[J].北京化工大学学报(自然科学版),2009,36(6):43-47. |
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| 作者姓名： | 苟军旗 陈广新 李齐方 |
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| 作者单位： | 北京化工大学,材料科学与工程学院,北京,100029;北京化工大学,材料科学与工程学院,北京,100029;北京化工大学,材料科学与工程学院,北京,100029 |
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| 基金项目： | 北京市自然科学基金，国家"863"计划，北京市教委重点学科共建项目 |
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| 摘 要： | 通过“顶角 戴帽”法合成了一种带双键的单官能团笼型倍半硅氧烷纳米粒子（POSS），对其结构进行了表征；再利用双键可反应的化学特性，用自由基聚合制备出聚苯乙烯(PS)/POSS共聚物，研究了共聚物的结构、热性能及POSS纳米粒子在PS基体中的分散情况。实验结果表明， POSS粒子容易自组装成直径6～8nm的纳米微球，这些微球均匀分散在PS基体中；POSS纳米粒子的加入阻碍了PS的链段运动，从而使得PS/POSS共聚物的玻璃化温度比纯PS提高了10℃以上。
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| 关 键 词： | 笼型倍半硅氧烷 聚苯乙烯 顶角-戴帽法 有机-无机杂化材料 |
| 收稿时间： | 2009-03-11 |
Synthesis of a polyhedral oligomeric silsesquioxane-allyl macromer and its copolymer with styrene |
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| GOU JunQi,CHEN GuangXin,LI QiFang.Synthesis of a polyhedral oligomeric silsesquioxane-allyl macromer and its copolymer with styrene[J].Journal of Beijing University of Chemical Technology,2009,36(6):43-47. |
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| Authors: | GOU JunQi CHEN GuangXin LI QiFang |
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| Institution: | College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | A new kind of polyhedral oligomeric silsesquioxane(POSS-allyl) was synthesized by the corner-capping reaction between the incompletely condensed silsesquioxane(cyclo-C5H9)7Si7O9(OH)3 and allyltrichlorosilane.The chemical structure of POSS-allyl was characterized by FT-IR,1H-NMR and 29Si-NMR.A copolymer of styrene and POSS-allyl was prepared by a conventional free radical polymerization technique using AIBN as initiator.TEM studies indicated that POSS-allyl was well dispersed as microspheres(D=6-8 nm) in the... |
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| Keywords: | polyhedral oligomeric silsesquioxane PS corner-capped reaction organic-inorganic hybrid material |
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