Boosting or moderating surface-initiated Cu(0)-mediated controlled radical polymerization with external additives

doi:10.1039/d0py01061h

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Boosting or moderating surface-initiated Cu(0)-mediated controlled radical polymerization with external additives
	Li, Wei ; Sheng, Wenbo ; Jordan, Rainer ; Zhang, Tao
刊名	POLYMER CHEMISTRY
	2020
卷号	11 期号:43 页码:6971-6977
关键词	BRUSH GROWTH ATRP FABRICATION GRADIENTS MECHANISM CU-0
DOI	10.1039/d0py01061h
英文摘要	Surface-initiated Cu(0)-mediated controlled radical polymerization (SI-CuCRP) has been proved to be a powerful method for the fabrication of polymer brushes with various architectures. A key factor in the SI-CuCRP process is the copper disproportionation/comproportionation equilibrium, yet little is known about how the equilibrium works in controlling polymer brush growth, especially under external additives. In this work, the regulation of such equilibrium in SI-CuCRP via external additives is reported in more detail. We find that the polymer brush growth rate can be enhanced via decreasing the ligand concentration or adding NaBr, while it can be reduced by adding ascorbic acid. In addition, the concentration of CuBr2 regulates the ratio of [Cu-I]/[Cu-II] to tune the polymer growth kinetics and grafting density over a wide range, which is independent of the distance between the copper plate and initiator-modified substrate. Besides, ultrafast polymerization (surface-initiated hydrogel formation) can be achieved when the ratio of [CuBr2] : [ligand] reaches 1 : 2. This work gives a deeper insight into the SI-CuCRP process and facilitates the fabrication of polymer brushes on demand.
学科主题	Polymer Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20334]
专题	2020专题
作者单位	1.Jordan, R (corresponding author), Tech Univ Dresden, Sch Sci, Fac Chem & Food Chem, Chair Macromol Chem, Mommsenstr 4, D-01069 Dresden, Germany. 2.Zhang, T (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo 315201, Peoples R China.
推荐引用方式 GB/T 7714	Li, Wei,Sheng, Wenbo,Jordan, Rainer,et al. Boosting or moderating surface-initiated Cu(0)-mediated controlled radical polymerization with external additives[J]. POLYMER CHEMISTRY,2020,11(43):6971-6977.
APA	Li, Wei,Sheng, Wenbo,Jordan, Rainer,&Zhang, Tao.(2020).Boosting or moderating surface-initiated Cu(0)-mediated controlled radical polymerization with external additives.POLYMER CHEMISTRY,11(43),6971-6977.
MLA	Li, Wei,et al."Boosting or moderating surface-initiated Cu(0)-mediated controlled radical polymerization with external additives".POLYMER CHEMISTRY 11.43(2020):6971-6977.