Visible Light Induced Living/Controlled Radical Polymerization of Acrylates Catalyzed by Cobalt Porphyrins

doi:10.1021/ma5014385

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	Visible Light Induced Living/Controlled Radical Polymerization of Acrylates Catalyzed by Cobalt Porphyrins
	Zhao, Yaguang; Yu, Mengmeng; Zhang, Shuailin; Liu, Yuchu; Fu, Xuefeng
刊名	MACROMOLECULES
	2014-09-23
卷号	47 期号:18 页码:6238-6245
ISSN号	0024-9297
DOI	10.1021/ma5014385
英文摘要	Visible light induced living radical polymerization of a wide scope of acrylates mediated by organocobalt porphyrins was developed. The photocleavage of the Co-C bond of organocobalt porphyrin produced carbon centered radicals, which initiated polymerization, and porphyrin cobalt(II), a persistent metal-centered radical. The organocobalt porphyrins were highly sensitive to external visible light irradiation so that photostimulus was used to control the initiation steps and regulate chain growth by reversibly activating the Co-C bond. Polymerization occurred spontaneously under irradiation and stopped promptly once shutting down light source. The scope of monomers was successfully extended from acrylamides to various hydrophobic and hydrophilic acrylates via the control of the light intensity. The structure of polyacrylate obtained was confirmed by D-2 NMR, C-13 NMR, GPC, and MALDI-TOF-MS. One of the unique features of this neat visible light induced polymerization process is that organocobalt porphyrins played dual roles of photoinitiators and mediators without addition of any dyes, photosensitizers, or sacrificial reagents.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000342184700011
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/51113]
专题	中国科学院化学研究所
通讯作者	Fu, Xuefeng
作者单位	Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Yaguang,Yu, Mengmeng,Zhang, Shuailin,et al. Visible Light Induced Living/Controlled Radical Polymerization of Acrylates Catalyzed by Cobalt Porphyrins[J]. MACROMOLECULES,2014,47(18):6238-6245.
APA	Zhao, Yaguang,Yu, Mengmeng,Zhang, Shuailin,Liu, Yuchu,&Fu, Xuefeng.(2014).Visible Light Induced Living/Controlled Radical Polymerization of Acrylates Catalyzed by Cobalt Porphyrins.MACROMOLECULES,47(18),6238-6245.
MLA	Zhao, Yaguang,et al."Visible Light Induced Living/Controlled Radical Polymerization of Acrylates Catalyzed by Cobalt Porphyrins".MACROMOLECULES 47.18(2014):6238-6245.