| 修饰性产物SDB-g-MMA与丙烯腈单体的辐射接枝 |
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| 引用本文： | 熊洁,许云书,谢续兵,黄玮,傅中华.修饰性产物SDB-g-MMA与丙烯腈单体的辐射接枝[J].辐射研究与辐射工艺学报,2010,28(4):208-214. |
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| 作者姓名： | 熊洁 许云书 谢续兵 黄玮 傅中华 |
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| 作者单位： | 1. 中国工程物理研究院核物理与化学研究所,绵阳,621900
2. 中国工程物理研究院核物理与化学研究所,绵阳,621900;西南科技大学材料科学与工程学院,绵阳,621010 |
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| 基金项目： | 中国工程物理研究院科学技术发展基金 |
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| 摘 要： | 以共辐照接枝共聚物SDB-g-MMA为基材,利用γ射线在空气中对SDB-g-MMA进行预辐照,然后在场外接枝丙烯腈单体,获得了SDB-g-MMA-AN材料。通过FT-IR分析和接枝率测定,确认了预辐照接枝反应的进行。XRD和SEM分析结果表明,丙烯腈侧链的引入对材料的整体结构有序度具有显著影响。探讨了SDB-g-MMA二次辐照过程中的降解与氧化反应机理,获得了预辐照接枝产物SDB-g-MMA-AN的结构模型。
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| 关 键 词： | 修饰性共聚物 交联聚苯乙烯 预辐照接枝 丙烯腈 |
Modification of polymer SDB-g-MMA with acrylonitrile by pre-irradiation grafting |
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| XIONG Jie,XU Yunshu,XIE Xubing,HUANG Wei,FU Zhonghua.Modification of polymer SDB-g-MMA with acrylonitrile by pre-irradiation grafting[J].Journal of Radiation Research and Radiation Processing,2010,28(4):208-214. |
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| Authors: | XIONG Jie XU Yunshu XIE Xubing HUANG Wei FU Zhonghua |
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| Affiliation: | (Institute of Nuclear Physics and Chemistry,Chinese Academy of Engineering Physics,Mianyang 621900,China) 2 (School of Material Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,China) |
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| Abstract: | The SDB-g-MMA-AN was prepared by pre-irradiation grafting of acrylonitrile （AN） on MMA ring of SDB-g-MMA under initiation of SDB-g-MMAO2· radical produced from irradiation of SDB-g-MMA in air by γ-rays. The pre-irradiation grafting of AN was confirmed with the sample of SDB-g-MMA-AN characterized by FT-IR and the grafting ratios at different absorbed doses obtained. Based on the results measured by XRD and SEM,it could be revealed that acrylonitrile side-chain played an important role in improving properties of SDB-g-MMA-AN. It has been found that both radiation degradation and oxidation of SDB-g-MMA are involved in the irradiation process. And the structure model of SDB-g-MMA-AN molecule has been presumed. |
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| Keywords: | Modification copolymer Polystyrene-divinylbenze Pre-irradiation grafting Acrylonitrile |
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