N,N-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-pyrimidinamine
CAS Number:
1032759-30-0
Molecular Formula:
C12H20BN3O2
ATRP–RCMpolymercyclization: synthesis of amphiphilic cyclic polystyrene-b-poly(ethylene oxide) copolymers
Literature Information
Publication Date
2011-11-23
DOI
10.1039/C1PY00475A
Impact Factor
5.582
Authors
Eisuke Baba, Satoshi Honda, Takuya Yamamoto, Yasuyuki Tezuka
View Original
Abstract
A novel amphiphilic block copolymer, i.e., cyclic polystyrene-b-poly(ethylene oxide) (cyclic PS-b-PEO 2), was synthesized through atom-transfer radical polymerization (ATRP), followed by ring-closing metathesis (RCM). Thus, a bromobenzyl-terminated PS-b-PEO-b-PS (6) was first prepared by ATRP of styrene using a PEO macroinitiator having 2-bromoisobutyryl groups (5). The subsequent end-group conversion into allyl groups was performed quantitatively with allyltrimethylsilane (ATMS) in the presence of TiCl4. The allyl-telechelic triblock copolymer PS-b-PEO-b-PS (7) thus obtained was subjected to metathesis polymer cyclization with a Grubbs' 2nd generation catalyst to produce amphiphilic cyclic PS-b-PEO (2).
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Source Journal
Polymer Chemistry
CiteScore:
8.6
Self-citation Rate:
7.3%
Articles per Year:
457
Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.
Recommended Compounds
(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-phenylpropanoic acid
CAS Number:
1217663-60-9
Molecular Formula:
C24H21NO4
![6-Bromo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine structure](https://static.chemtradehub.com/structs/120/1203499-17-5-b4d1.webp "6-Bromo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine structure")
6-Bromo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine
CAS Number:
1203499-17-5
Molecular Formula:
C7H7BrN2O
5-Phenyl-1-(pyridin-3-ylsulfonyl)-1H-pyrrole-3-carbaldehyde
CAS Number:
881676-90-0
Molecular Formula:
C16H12N2O3S
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