Optically transparent and high molecular weight polyolefin block copolymers toward self-assembled photonic band gap materials

Jongseung Yoon, Robert T. Mathers, Geoffrey W. Coates, Edwin L. Thomas

Research output: Contribution to journalArticle

72 Scopus citations

Abstract

Block copolymers based on readily available olefins have been synthesized to construct self-assembled one-dimensional (1-D) photonic crystals. Using living olefin polymerization via a bis(phenoxyimine)-titanium dichloride/MAO catalyst system, optically transparent and high molecular weight polyolefin block copolymers have been prepared with a narrow molecular weight distribution. The resulting copolymers exhibited a partial 1-D photonic band gap with an excellent optical transparency. Random copolymerization of olefin monomers provided a route to tune the refractive index of each block as well as to suppress the crystallinity for optical transparency. Ternary blending of diblock copolymer with homopolymers further afforded a pathway to control the wavelength of the peak reflectivity of the polyolefin-based photonic structures.

Original languageEnglish (US)
Pages (from-to)1913-1919
Number of pages7
JournalMacromolecules
Volume39
Issue number5
DOIs
StatePublished - Mar 7 2006

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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