NDLI: Synthesis of block copolymer from dissimilar vinyl monomer by stable free radical polymerization

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Synthesis of block copolymer from dissimilar vinyl monomer by stable free radical polymerization

Content Provider	Semantic Scholar
Author	You-Si, Zou Jian, Lin Rongchuan, Zhuang Jian-Liang, Ye Li-Zong, Dai Lan-Sun, Zheng
Copyright Year	2000
Abstract	Controlled polystyrenes with different molar mass values were synthesized starting from benzoyl peroxide and TEMPO (2,2,6,6-tetramethylpiperidinyl-1-oxy). The polystyrene homopolymers served as macroinitiators for the block copolymerizations of the dissimilar vinyl monomers butyl methacrylate (BMA), ethyl methacrylate (EMA), methyl methacrylate (MMA), octyl methacrylate (OMA), vinyl acetate (VAc), N,N-dimethylacrylamide (DMA), and 2-(dimethylamino)ethyl acrylate (DAEA). Polystyrene−polymethacrylate diblock copolymers with well-defined structures as well as controlled and narrow molar mass distribution were obtained from the lower-mass polystyrene macroinitiator. Contrary to methacrylates, VAc and DAEA are not readily initiated by the polystyrene macroinitiator. Block copolymer formation was confirmed by 1H NMR and GPC measurements. On the basis of the 1H NMR investigation, there is strong evidence for the presence of TEMPO-terminated copolymers. The TEMPO-mediated polymerization is suitable for the synthe...
Starting Page	4745
Ending Page	4749
Page Count	5
File Format	PDF HTM / HTML
DOI	10.1021/ma991719y
Volume Number	33
Alternate Webpage(s)	http://polymer.chem.cmu.edu/~kmatweb/2000/May_June_00/June_00/Macromolecules/yousi.pdf
Alternate Webpage(s)	https://doi.org/10.1021/ma991719y
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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