| SBS粉体预辐射接枝丙烯酸研究 |
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| 引用本文： | 李建喜,李林繁,杨性坤,李吉豪,虞鸣,邓波,李景烨. SBS粉体预辐射接枝丙烯酸研究[J]. 辐射研究与辐射工艺学报, 2012, 0(3): 148-152 |
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| 作者姓名： | 李建喜 李林繁 杨性坤 李吉豪 虞鸣 邓波 李景烨 |
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| 作者单位： | [1]信阳师范学院化学化工学院,信阳464000 [2]中国科学院上海应用物理研究所,上海201800 |
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| 基金项目： | 国家自然科学基金（10805070,11175234,11105210）资助 |
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| 摘 要： | 以60Coγ射线为辐射源,对SBS粉体在空气中进行预辐照,然后将一定量粉体置于丙烯酸水溶液体系中进行接枝反应。研究了反应时间、反应温度、单体浓度和吸收剂量对接枝率的影响。傅里叶变换红外光谱(FTIR)分析结果证明了羧酸基团的成功引入,并对接枝后粉体的热重分析,结晶度和表面形貌进行了研究。
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| 关 键 词： | SBS(苯乙烯-丁二烯-苯乙烯三嵌段共聚物) 预辐射接枝 粉体 丙烯酸 |
Pre-irradiation-induced grafting of acrylic acid onto SBS powder |
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| LI Jianxi,LI Linfan,YANG Xingkun,LI Jihao,YU Ming,DENG Bo,LI Jingye. Pre-irradiation-induced grafting of acrylic acid onto SBS powder[J]. Journal of Radiation Research and Radiation Processing, 2012, 0(3): 148-152 |
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| Authors: | LI Jianxi LI Linfan YANG Xingkun LI Jihao YU Ming DENG Bo LI Jingye |
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| Affiliation: | (College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China) |
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| Abstract: | In this paper acrylic acid was grafted onto SBS powder using pre-irradiation method to produce SBS-g-PAA. The effects of monomer concentration, absorbed dose, reaction time and temperature on degree of grafting were discussed in detail. The FTIR spectra of SBS-g-PAA proved that the polyacrylic acid ha been grafted onto SBS powder successfully. Moreover, the thermogravimetry, X-rays diffraction and the scanning electron microscope were also investigated. Compared with pristine SBS powder, the SBS-g-PAA powder analysis indicated that the ther- mal degradation exhibited a two-step degradation pattern meanwhile the crystallinity declined and the surface became smoother because of the introduction of polyacrylic acid. |
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| Keywords: | SBS（Styrene-butadiene-styrene triblock copolymer） Pre-irradiation grafting Powder Acrylic acid |
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