2801-05-0Relevant articles and documents
Cationic RAFT polymerization using ppm concentrations of organic acid
Uchiyama, Mineto,Satoh, Kotaro,Kamigaito, Masami
, p. 1924 - 1928 (2015)
A metal-free, cationic, reversible addition-fragmentation chain-transfer (RAFT) polymerization was proposed and realized. A series of thiocarbonylthio compounds were used in the presence of a small amount of triflic acid for isobutyl vinyl ether to give p
Photoorganocatalyzed Reversible-Deactivation Alternating Copolymerization of Chlorotrifluoroethylene and Vinyl Ethers under Ambient Conditions: Facile Access to Main-Chain Fluorinated Copolymers
Jiang, Kunming,Han, Shantao,Ma, Mingyu,Zhang, Lu,Zhao, Yucheng,Chen, Mao
supporting information, p. 7108 - 7115 (2020/05/14)
Fluoropolymers have found broad applications for many decades. Considerable efforts have focused on expanding access toward main-chain fluorinated polymers. In contrast to previous polymerizations of gaseous fluoroethylenes conducted at elevated temperatures and with high-pressure metallic vessels, we here report the development of a photoorganocatalyzed reversible-deactivation radical alternating copolymerization of chlorotrifluoroethylene (CTFE) and vinyl ethers (VEs) at room temperature and ambient pressure by exposing to LED light irradiation. This method enables the synthesis of various fluorinated alternating copolymers with low ? and high chain-end fidelity, allowing an iterative switch of the copolymerization between ON and OFF states, the preparation of fluorinated block alternating copolymers, as well as postsynthetic modifications.
Block ethylenic copolymers comprising a vinyllactam block, cosmetic or pharmaceutical compositions containing them and cosmetic use of these copolymers
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Page/Page column 16, (2010/11/08)
Disclosed herein are a linear block ethylenic copolymer comprising: at least one block A obtained from monomers comprising from 52% to 99% by weight of at least one ethylenic monomer comprising a lactam ring, of formula (I): and from 1% to 48% by weight o
Block ethylenic copolymers comprising a vinyllactam block, cosmetic or pharmaceutical compositions comprising them and cosmetic use of these copolymers
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Page/Page column 15-16, (2010/02/14)
The present disclosure relates to linear block ethylenic copolymers that have reduced tack and thus do not leave a tacky feel, and to cosmetic and pharmaceutical compositions comprising the linear block ethylenic copolymer. Further disclosed herein is a c