Modification of polymer SDB-g-MMA with acrylonitrile by pre-irradiation grafting

XIONG Jie; XU Yunshu; XIE Xubing; HUANG Wei; FU Zhonghua

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Modification of polymer SDB-g-MMA with acrylonitrile by pre-irradiation grafting

更新时间：2023-03-30

- Modification of polymer SDB-g-MMA with acrylonitrile by pre-irradiation grafting
- Journal of Radiation Research and Radiation Processing Vol. 28, Issue 4, Pages: 208-214(2010)
- 作者机构：
  
  1.中国工程物理研究院核物理与化学研究所　绵阳　621900
  2.西南科技大学材料科学与工程学院　绵阳　621010
- 作者简介：
- 基金信息：
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XIONG Jie, XU Yunshu, XIE Xubing, et al. Modification of polymer SDB-g-MMA with acrylonitrile by pre-irradiation grafting. [J]. Journal of Radiation Research and Radiation Processing 28(4):208-214(2010)
DOI：

XIONG Jie, XU Yunshu, XIE Xubing, et al. Modification of polymer SDB-g-MMA with acrylonitrile by pre-irradiation grafting. [J]. Journal of Radiation Research and Radiation Processing 28(4):208-214(2010) DOI：

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。

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-MMAO,2,∙ 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.

关键词

修饰性共聚物交联聚苯乙烯预辐照接枝丙烯腈

Keywords

Modification copolymerPolystyrene-divinylbenzePre-irradiation graftingAcrylonitrile

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