新型高热稳定性纳米银@交联壳@聚合物刷复合粒子的构筑及光信息存储性能研究

项目名称： 新型高热稳定性纳米银@交联壳@聚合物刷复合粒子的构筑及光信息存储性能研究

项目编号： No.51303096

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 一般工业技术

项目作者： 李爱香

作者单位： 山东理工大学

项目金额： 25万元

中文摘要： 为适应信息量剧增的形势，发展短波长光存储材料以及实现由二维到多维存储是开发超高密度存储材料的重要途径。本课题拟设计合成新型高热稳定性纳米银@交联壳@聚合物刷复合粒子，并以此复合粒子为激光活性物质，利用纳米银的光热效应开发超高密度的光信息存储材料。首先采用RAFT聚合法制备含可交联链段聚丙烯酸三甲氧基硅基丙酯（PTMPA）或聚对氯甲基苯乙烯（PVBC）的嵌段共聚物PS-b-PTMPA-b-PS或PS-b-PVBC-b-PS；然后利用这些嵌段共聚物为稳定剂，制备嵌段共聚物刷保护的纳米银；在一定条件下交联PTMPA或PVBC链段，得SiO2或交联PVBC壳层和聚合物刷保护的纳米银复合粒子，所得复合粒子热稳定性高，与聚合物基体相容性好，合成方法简单易行，具有普适性。制备含此复合粒子的聚合物单层或多层膜，研究含复合粒子薄膜的光热性质和光信息存储性能，开发超高密度光信息存储材料。

中文关键词： 高热稳定性；交联壳；聚合物刷；纳米银；光信息存储

英文摘要： In order to meeting the situation of a surge in information, developing short wavelenghth optical information storage material and realizing transfer from two dimensions to many dimensions storage are very important ways. A novel high heat stability silver composite nanoparticle protected by crosslinked shell and polymer brushes (Ag NPs@crosslink shell@polymer brushes)are designed and prepared. And super high density optical information storage material will be developed using photo-thermal property of this composite nanoparticles as laser active materials. Firstly, block copolymer with crosslinkable chains poly(3-(trimethoxysilyl)propyl acrylate) (PTMPA) or poly(vinylbenzyl chloride) (PVBC) are synthesized by RAFT technique. Then Ag NPs protected by block copolymer brushes are prepared using copolymer as stabilizer. And then Ag NPs@crosslink shell@polymer brushes are prepared by crosslinking crosslinkable PTMPA or PVBC chains. The dispersibility of composite nanoparticles obtained by this method in polymer matrix will be very good and heat stability will be high.The method is facile, and composite nanoparticles with other crosslink shell will be obtained by changing crosslinkable RAFT monomer. Finally, the photo-thermal and optical information storage properties of polymer films containing composite nanoparticl

英文关键词： high thermal stability；crosslink shell；polymer brush；silver nanoparticles；optical data storage