Abstract (3-(tert-butylperoxy)propyl) trimethoxysilane (TBPT), is a tailor-made new style silane coupling agent with peroxide group, which have ability of initiating polymerization. This study used TBPT to generate free radical, and initiated the polymerization of acrylonitrile (AN), thereby forming polyacrylonitrile (PAN) in two approaches, thermal initiation system and redox initiation system. Meanwhile this study bonded TBPT onto nano-TiO2 to get modified nano-TiO2 by means of the coupling function of TBPT, and then made the peroxide group of the modified nano-TiO2 decompose and initiate the polymerization of AN in thermal initiation system and redox initiation system respectively. The products were investigated and analyzed by FTIR, XPS and TG. The result showed that on one hand, in the products of the thermal initiation there was PAN, which both attached and unattached to the modified nano-TiO2; on the other hand, in the products of the redox initiation system the PAN unattached to the modified nano-TiO2 was produced, while the PAN attached to the modified nano-TiO2 was not.

中文翻译：

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(3-(叔丁基过氧化)丙基)三甲氧基硅烷引发丙烯腈聚合反应的引发方法研究

摘要 (3-(叔丁基过氧)丙基)三甲氧基硅烷(TBPT)是一种特制的新型带过氧化物基团的硅烷偶联剂，具有引发聚合的能力。本研究利用TBPT产生自由基，引发丙烯腈（AN）聚合，从而以热引发体系和氧化还原引发体系两种方式形成聚丙烯腈（PAN）。同时本研究通过TBPT的偶联作用将TBPT键合到纳米TiO2上得到改性纳米TiO2，然后使改性纳米TiO2的过氧化基分解并引发热引发体系中AN的聚合和氧化还原引发系统分别。通过FTIR、XPS和TG对产物进行了研究和分析。结果表明，一方面，热引发的产物中存在PAN，既附着又不附着改性纳米二氧化钛；另一方面，在氧化还原引发体系的产物中，产生了未连接到改性纳米 TiO2 上的 PAN，而连接到改性纳米 TiO2 上的 PAN 则没有。