Enhancement of polystyrene composites by hyper-branched polymer-grafted nano-SiO2
作者： Xiang Xu , Yanning Zeng , Fa-Ai Zhang
DOI: 10.1080/14658011.2018.1475167
关键词: Divinylbenzene 、 Composite material 、 Thermogravimetric analysis 、 Polymer 、 Styrene 、 Glass transition 、 Materials science 、 Dynamic mechanical analysis 、 Polystyrene 、 Differential scanning calorimetry
摘要: ABSTRACTHyper-branched poly(styrene) (HPS) made from copolymerisation of styrene (St) and a branching monomer divinylbenzene (DVB) in the presence chain transfer agent n-dodecanethiol (C12SH) was grafted onto surface nano-SiO2 via emulsion polymerisation (donated as HPS-SiO2). A series PS/HPS-SiO2 composites were obtained by addition prepared HPS-SiO2 into pure PS. The structures properties product characterised Fourier-transform infrared spectra (FT-IR), differential scanning calorimetry, thermogravimetric analysis dynamic mechanical (DMA). results showed strong interface interaction between HPS indicating that has nano-SiO2. storage modulus, Young’s glass transition temperature (Tg) thermal decomposition composite increased apparently loading an appropriate amount HPS-grafted SiO2.
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