Synthesis, self-assembly and responsive properties of PEG-b-PDMAEMA-b- PMMAzo triblock copolymers

  • Yao Hui Xing
  • , Shao Liang Lin*
  • , Jia Ping Lin
  • , Xiao Hua He
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

A novel amphiphilic copolymer poly(ethylene glycol)-block-poly(N,N- dimethylamino-2-ethylmethacrylate)-blockpoly[6-(4-methoxy-azobenzene-4′- oxy) hexyl methacrylate] (PEG-b-PDMAEMA-b-PMMAzo) was prepared by ATRP polymerization. The self-assembly and responsive behaviors were investigated by SEM, TEM, LLS and UV-Vis spectra. The results indicated that the copolymers can self-assemble into spherical structures in aqueous media. The aggregate size can be tuned by pH and temperature. The trans-cis isomerization behavior of the formed aggregates was also examined. Upon irradiation with a linear polarized light, the elongation degree of the aggregates was increased with the irradiation time.

Original languageEnglish
Pages (from-to)833-840
Number of pages8
JournalChinese Journal of Polymer Science (English Edition)
Volume31
Issue number5
DOIs
StatePublished - May 2013

Keywords

  • Azobenezene
  • Copolymer
  • Responsive
  • Self-assemble

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