Synthesis of chlorinated and anhydride-modified low density polyethylene by solid-phase chlorination and grafting-improving the adhesion of a film-forming polymer

doi:10.1039/c3ra47562j

CORC > 化学研究所 > 中国科学院化学研究所

	Synthesis of chlorinated and anhydride-modified low density polyethylene by solid-phase chlorination and grafting-improving the adhesion of a film-forming polymer
	Wang, Yuan 1; Liu, Lijuan 1; Jing, Zhao 1; Zhao, Jiruo 1,2; Feng, Ying 1
刊名	RSC ADVANCES
	2014
卷号	4 期号:24 页码:12490-12496
ISSN号	2046-2069
DOI	10.1039/c3ra47562j
英文摘要	This paper is mainly focused on the modification of low density polyethylene (LDPE) by chlorinating and grafting it simultaneously in the gas-solid phase. There are two key obstacles to the success of this process. The first is the feasibility of the chlorination and grafting occurring simultaneously on the LDPE chains, and the second is how to gain control of the high chlorinated polyethylene (HCPE, Clwt% > 60%) preparation, when using LDPE as the raw material, which is a heterogeneous reaction. The feasibility of the process is discussed by FTIR and H-1-NMR, in which LDPE is chlorinated to a high chlorine content (Clwt% = 64%) while maleic anhydride (MAH) is grafted onto the backbone chain (LDPE). This is a novel modification method patented by us, called in situ chlorinating graft copolymerization (ISCGC). The products' molecular weight and distribution, thermal properties, and the factors affecting the modification process are analyzed by gel permeation chromatography (GPC), differential scanning calorimetry (DSC), stereoscopic microscopy and the curve of chlorine content versus time. A graft degree (GD) of about 2% is achieved for the graft copolymer, which has a broad practical significance. The adhesion and impact strength tests of the product as a film-forming polymer in coatings indicate that it could effectively increase the adhesion when MAH is grafted onto the LDPE by ISCGC.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000332473400053
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/51267]
专题	中国科学院化学研究所
通讯作者	Zhao, Jiruo
作者单位	1.Qingdao Univ Sci & Technol, Key Lab Rubber Plast, Minist Educ, Shandong Prov Key Lab Rubber Plast, Qingdao 266042, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yuan,Liu, Lijuan,Jing, Zhao,et al. Synthesis of chlorinated and anhydride-modified low density polyethylene by solid-phase chlorination and grafting-improving the adhesion of a film-forming polymer[J]. RSC ADVANCES,2014,4(24):12490-12496.
APA	Wang, Yuan,Liu, Lijuan,Jing, Zhao,Zhao, Jiruo,&Feng, Ying.(2014).Synthesis of chlorinated and anhydride-modified low density polyethylene by solid-phase chlorination and grafting-improving the adhesion of a film-forming polymer.RSC ADVANCES,4(24),12490-12496.
MLA	Wang, Yuan,et al."Synthesis of chlorinated and anhydride-modified low density polyethylene by solid-phase chlorination and grafting-improving the adhesion of a film-forming polymer".RSC ADVANCES 4.24(2014):12490-12496.