Block copolymer micelles with near infrared metal phthalocyanine dyes for laser induced writing

Himadri Acharya, Bokyung Yoon, Youn Jung Park, Insung Bae, Cheolmin Park

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A route has been developed to disperse metal-containing phthalocyanine dyes in a non-polar medium based on amphiphilic block copolymer micelles of poly[styrene-block-(4-vinylpyridine)] (PS-b-P4VP) and poly[styrene-bolck- (acrylic acid)] (PS-b-PAA) copolymers. Polar P4VP and PAA efficiently encapsulate cobalt(II), manganese(II), and nickel(II) phthalocyanine dyes by axial coordination of nitrogen and μ-oxo bridged dimerization with the transition metals, respectively. Good dispersion of the dyes is confirmed by the linear enhancement of Q-bands in UV-vis absorption spectra with dye concentration. A thin monolayered PS-b-P4VP micelle film that contained a nickel(II) phthalocyanine dye which efficiently adsorbs a laser beam on a localized area to generate a local heat higher than the glass transition temperatures of both blocks. One-dimensional laser writing on the dye-containing film allows the fabrication of a few submicrometer wide line patterns in which the selfassembled nanostructure of the block copolymer is modified by the directional heat arising from laser scanning. (Figure Presented)

Original languageEnglish
Pages (from-to)1071-1077
Number of pages7
JournalMacromolecular Rapid Communications
Volume31
Issue number12
DOIs
Publication statusPublished - 2010 Jun 16

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All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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