Combined effects between activating group Z and leaving group R in dithiocarbamates for controlling degradation and branching reactions of polypropylene

	Combined effects between activating group Z and leaving group R in dithiocarbamates for controlling degradation and branching reactions of polypropylene
	Xing, Haiping ; Wan, Dong ; Qiu, Jian ; Wang,Yanhui ; Ma,Li ; Jiang,Zhewi ; Tang,Tao
刊名	polymer
	2014
卷号	55 期号:21 页码:5435-5444
关键词	TRANSFER RAFT POLYMERIZATION HETEROAROMATIC RING DERIVATIVES FREE-RADICAL POLYMERIZATION RHEOLOGICAL PROPERTIES MOLECULAR-STRUCTURE ELECTRON-BEAM MELT POLYETHYLENE
通讯作者	jiang,zw
英文摘要	four dithiocarbamates with different chemical structures (s-propyl n,n-dipropyldithiocarbamate, s-allyl n,n-dipropyldithiocarbamate, s-propyl n-pyrrolocarbodithioate and s-allyl n-pyrrolocarbodithioate) were used to adjust the melt radical reaction of polypropylene (pp). the combined effects between activating group z (n,n-dipropyl and n-pyrrolo) and leaving group r(allyl and propyl) in the dithiocarbamates on melt reaction of pp were studied in the presence of peroxide and trimethylolpropane triacrylate monomer. the results from h-1 nmr, ftir, gpc, theological measurements and model experiments showed that chemical structures of activating group z and leaving group r played a key role in the molecular structures and melt properties of modified pp samples. the presence of s-allyl n-pyrrolocarbodithioate with stronger activating group n-pyrrolo and easier leaving group allyl led to the formation of long chain branching structure with more branched points (comb-like topology). the possible reactions in the above systems were also discussed. (c) 2014 elsevier ltd. all rights reserved.
收录类别	SCI
语种	英语
WOS记录号	WOS:000343377800016
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/57316]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Xing, Haiping,Wan, Dong,Qiu, Jian,et al. Combined effects between activating group Z and leaving group R in dithiocarbamates for controlling degradation and branching reactions of polypropylene[J]. polymer,2014,55(21):5435-5444.
APA	Xing, Haiping.,Wan, Dong.,Qiu, Jian.,Wang,Yanhui.,Ma,Li.,...&Tang,Tao.(2014).Combined effects between activating group Z and leaving group R in dithiocarbamates for controlling degradation and branching reactions of polypropylene.polymer,55(21),5435-5444.
MLA	Xing, Haiping,et al."Combined effects between activating group Z and leaving group R in dithiocarbamates for controlling degradation and branching reactions of polypropylene".polymer 55.21(2014):5435-5444.