Syntheses of Well-Defined Functional Isotactic Polypropylenes via Efficient Copolymerization of Propylene with omega-Halo-alpha-alkenes by Post-metallocene Hafnium Catalyst

doi:10.1021/ma4022696

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	Syntheses of Well-Defined Functional Isotactic Polypropylenes via Efficient Copolymerization of Propylene with omega-Halo-alpha-alkenes by Post-metallocene Hafnium Catalyst
	Wang, Xiaoyan 1,2; Wang, Yongxia 1; Shi, Xincui 1; Liu, Jingyu 1; Chen, Changle 3; Li, Yuesheng 1
刊名	MACROMOLECULES
	2014-01-28
卷号	47 期号:2 页码:552-559
ISSN号	0024-9297
DOI	10.1021/ma4022696
英文摘要	Catalyzed by the (pyridylamido)hafnium/organoboron system, a series of halogen-functionalized isotactic polypropylenes were synthesized via the stereospecific copolymerization of propylene with omega-halo-alpha-alkenes. The (pyridylamido)hafnium/organoboron system has been proved to be a potent catalyst for propylene/omega-iodo-alpha-alkenes copolymerization, producing well-defined poly(propylene-co-omega-iodo-alpha-undecene)s with outstanding properties. The high molecular weight (M-w > 100 kg mol(-1)) functional iPPs possessing abundant iodoalkene units (up to 11.7 mol %) and unimodal molecular weight distributions (M-w/M-n approximate to 2) could be easily obtained under mild conditions with excellent catalytic activity. High isotactic selectivity of monomers, including propylene and polar comonomer, was unexpectedly observed ([mmmm] > 99%). Moreover, based on the unique copolymerization process and the highly reactive sites on the copolymers, the halogen groups of the resultant copolymers could be easily transformed into other polar groups via click chemistry, and the new functional iPPs with high molecular weights and abundant polar groups could be efficiently obtained.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000330543500011
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/50055]
专题	中国科学院化学研究所
通讯作者	Shi, Xincui
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Changchun Branch, Changchun 130022, Peoples R China 3.Univ Sci & Technol China, Dept Polymer Sci & Engn, CAS Key Lab Soft Matter Chem, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiaoyan,Wang, Yongxia,Shi, Xincui,et al. Syntheses of Well-Defined Functional Isotactic Polypropylenes via Efficient Copolymerization of Propylene with omega-Halo-alpha-alkenes by Post-metallocene Hafnium Catalyst[J]. MACROMOLECULES,2014,47(2):552-559.
APA	Wang, Xiaoyan,Wang, Yongxia,Shi, Xincui,Liu, Jingyu,Chen, Changle,&Li, Yuesheng.(2014).Syntheses of Well-Defined Functional Isotactic Polypropylenes via Efficient Copolymerization of Propylene with omega-Halo-alpha-alkenes by Post-metallocene Hafnium Catalyst.MACROMOLECULES,47(2),552-559.
MLA	Wang, Xiaoyan,et al."Syntheses of Well-Defined Functional Isotactic Polypropylenes via Efficient Copolymerization of Propylene with omega-Halo-alpha-alkenes by Post-metallocene Hafnium Catalyst".MACROMOLECULES 47.2(2014):552-559.