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Study of styrene-butadiene-styrene graft copolymerization by γ-ray irradiation Ⅲ:radiation graft of star SBS
Author(s): 
Pages: 223-228
Year: Issue:  4
Journal: JOURNAL OF RADIATION RESEARCH AND RADIATION PROCESSING

Keyword:  苯乙烯-丁二烯-苯乙烯嵌段共聚物甲基丙烯酸甲基丙烯酸甲酯辐射接枝;
Abstract: 利用γ射线辐射接枝法分别制备甲基丙烯酸(Methacrylic acid,MAA)和甲基丙烯酸酯(Methylmethacrylate,MMA)两种单体接枝星型SBS聚合物,采用傅立叶红外光谱(Fouriertransform infrared,FT-IR)、差示扫描热分析(Differentail scanning calorimetry,DSC)、热重分析(Thermogravimetric analysis,TGA)、核磁共振谱(13C{1H}Nuclear magnetic resonance,NMR)等手段对接枝聚合物进行了表征,确定了单体成功地引入SBS链上,同时发现SBS接枝聚合物具有较好的高温稳定性.着重对敏化剂提高接枝率的原因进行了探讨,认为在液固相接枝体系中,溶剂水的辐解产物.OH自由基对接枝率的提高起了非常重要的作用.
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