Studies on the Graft Copolymerization of Molten PP with Maleimide

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Studies on the Graft Copolymerization of Molten PP with Maleimide

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- Studies on the Graft Copolymerization of Molten PP with Maleimide
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 35, Issue S2, Pages: 17-21(1996)
- 作者机构：
  
  中山大学化学系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1996，
  
  Published Online：25 December 1996，
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Studies on the Graft Copolymerization of Molten PP with Maleimide. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 35(S2):17-21(1996)
DOI：

Studies on the Graft Copolymerization of Molten PP with Maleimide. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 35(S2):17-21(1996) DOI：

摘要

采用马来酰亚胺（ＭＩ）与等规聚丙烯（ｉ－ＰＰ）在２００℃熔融接枝，用红外光谱及元素分析对该接枝物进行了表征．同时研究了引发剂ＤＣＰ和接枝单体ＭＩ用量对接枝率的影响．结果表明：ＤＣＰ用量达到０．１０％以后接枝率渐趋平稳，继续增加也不会引起交联；随ＭＩ用量增加，接枝率相应增加，当用量达到２．５０％后接枝率趋于稳定．偏光显微镜观察表明：随接枝率增加，ＰＰ球晶尺寸变小，宽角Ｘ－射线衍射结果显示结晶度稍有下降，微晶在不同方向上尺寸大小发生了变化，引起晶体形态变化

Abstract

The graft copolymerization of molten isotatic polypropylene with maleimide(MI) was studied. The structure and morphology of PP-g-MI was studied by means of IR

WAXD

DSC and POM. It was found that with increasing the grafting degree

the crystalline temperature of the grafted PP increase

and its spherlote become smaller and imperfect. Compared with pure PP

the crystallinity of PP-g-MI change very little

but the crystallite sizes change a little. The grafted PP can easily crystallize in form of transcrytalline under shear condition.

关键词

马来酰亚胺等规聚丙烯熔融接枝

Keywords

maleimideisotatic polypropylenemolten grafting

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