Thermoresponsive properties of 3-, 4-, 6-, and 12-armed star-shaped poly[2-(dimethylamino)ethyl methacrylate]s prepared by core-first group transfer polymerization

文献信息

发布日期 2014-04-09

DOI 10.1039/C4PY00290C

影响因子 5.582

作者

Seiya Kikuchi, Yougen Chen, Keita Fuchise, Kenji Takada, Junsuke Kitakado, Shin-ichiro Sato, Toshifumi Satoh, Toyoji Kakuchi

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摘要

The t-Bu-P4-catalyzed group transfer polymerization (GTP) of 2-(dimethylamino)ethyl methacrylate (DMAEMA) using multi-functional GTP initiators that bear multiple silyl ketene acetal moieties (MTS3, MTS4, MTS6, and MTS12) homogeneously proceeded and rapidly completed to afford well-defined star-shaped poly[2-(dimethylamino)ethyl methacrylate]s (s-PDMAEMAs) with relatively narrow polydispersities. The molecular weights (MWs) of s-PDMAEMAs were well-controlled by optimizing the molar ratios of the monomer to initiators. For the structural analyses, the arm number and length uniformity of each s-PDMAEMA were then investigated by arm cleavage experiments using a transesterification method. The thermoresponsive properties in an aqueous solution of the resulting s-PDMAEMAs together with their analogous linear PDMAEMAs (l-PDMAEMAs), in terms of polymer concentration, molecular weight, and arm number, were eventually elucidated based on turbidimetry curves.

期刊推荐

Journal of Saudi Chemical Society

Russian Journal of General Chemistry

Russian Journal of Coordination Chemistry

Russian Chemical Bulletin

Russian Journal of Organic Chemistry

Acta Materialia

Chemistry Education Research and Practice

Journal of Peptide Science

Russian Journal of Bioorganic Chemistry

Organic Process Research & Development

来源期刊

Polymer Chemistry

CiteScore: 8.6

自引率: 7.3%

年发文量: 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.

Thermoresponsive properties of 3-, 4-, 6-, and 12-armed star-shaped poly[2-(dimethylamino)ethyl methacrylate]s prepared by core-first group transfer polymerization

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Polymer Chemistry

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