Study on initiating approach of (3-(tert-butylperoxy)propyl) trimethoxysilane on the polymerization of acrylonitrile as an initiator

• Main Authors: Yazhen Wang, Yutao Di, Shaobo Dong, Zijian He, Xueze Zhang, Jia Shi, Tianyu Lan
• Format: Article
• Language: English
• Published: Taylor & Francis Group 2017-01-01
• Series: Designed Monomers and Polymers
• Subjects: (3-(tert-butylperoxy)propyl) trimethoxysilane; polymerization of AN; redox initiation system; modified nano-TiO2
• Online Access: http://dx.doi.org/10.1080/15685551.2017.1364031

(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.