Synthesis of well-defined star-branched polymers by stepwise iterative methodology using living anionic polymerization

This article reviews the synthesis of regular and asymmetric star-branched polymers with well-defined structures by methodologies using living anionic polymerization, especially focusing on the synthetic approaches accessible for precisely controlled architectures of star-branched polymers concernin...

Full description

Saved in:
Bibliographic Details
Published in:Progress in polymer science 2011-03, Vol.36 (3), p.323-375
Main Authors: Higashihara, Tomoya, Hayashi, Mayumi, Hirao, Akira
Format: Article
Language:English
Subjects:
1,1-Diphenylethylene
Anionic polymerization
Applied sciences
Asymmetry
Exact sciences and technology
Focusing
Iterative methodology
Living anionic polymerization
Methodology
Molecular structure
Organic polymers
Physicochemistry of polymers
Polymerization
Polymers
Precise synthesis
Preparation, kinetics, thermodynamics, mechanism and catalysts
Star-branched polymer
Successive synthesis
Synthesis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This article reviews the synthesis of regular and asymmetric star-branched polymers with well-defined structures by methodologies using living anionic polymerization, especially focusing on the synthetic approaches accessible for precisely controlled architectures of star-branched polymers concerning molecular weight, molecular weight distribution, arm number, and composition. The reason for selecting living anionic polymerization from many living/controlled polymerization systems so far developed is that this living polymerization system is still the best to meet the strict requirements for the precise structures of star-branched polymers. Furthermore, we herein mainly introduce a novel and quite versatile stepwise iterative methodology recently developed by our group for the successive synthesis of many-armed and multi-compositional asymmetric star-branched polymers. The methodology basically involves only two sets of the reaction conditions for the entire iterative synthetic sequence. The reaction sequence can be, in principle, limitlessly iterated to introduce a definite number of the same or different polymer segments at each stage of the iteration. As a result, a wide variety of many-armed and multi-compositional asymmetric star-branched polymers can be synthesized.
ISSN:0079-6700
1873-1619
DOI:10.1016/j.progpolymsci.2010.08.001