Mechanism of crosslinking in benzoyl peroxide-initiated functionalization of vinyltriethoxysilane onto polypropylene in the water medium

被引：11
|
作者：
Yuan, Hao [1 ]
Shao, Qing [1 ]
Liang, Fengchun [1 ]
Shi, Hongwei [1 ]
Song, Wenbo [1 ]
机构：
[1] SINOPEC Beijing Res Inst Chem Ind, Beijing 100013, Peoples R China
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2020年 / 137卷 / 47期
关键词：
crosslinking; grafting; radical polymerization; MONOMERS; HYDROLYSIS;
D O I：
10.1002/app.49534
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Silane grafting and moisture crosslinking is one of the most common methods in the production of crosslinked polyolefin. A remarkable increase in the percentage of gel in the product was observed in benzoyl peroxide-mediated aqueous suspension grafting of vinyltriethoxysilane onto polypropylene. Aimed to explore the crosslinking reaction mechanism in this functionalization process, comprehensive experiments had been conducted and the grafted products were characterized by mass spectrometry,H-1 NMR, and(29)Si NMR spectroscopy. Finally, a novel crosslinking mechanism was proposed based on the characterization results.
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页数：8
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