Investigation of photo-responsive chiral polyisocyanates

Jie Li, Gary B. Schuster, Mark M. Green

Research output: Contribution to journalArticle

Abstract

A new class of polyisocyanates incorporating the 8-phenylmethylenebicyclo [3.2.1]octan-3-one chromophore through three different linkage patterns to the polymer backbone was synthesized. Photoresolution and photoracemization experiments were conducted to test its response to circularly polarized light (CPL). Irradiation of the polymers with CPL leads to the partial photoresolution of the bicyclicketone chromophore. This enantiomeric excess causes the polyisocyanate chain to favor one helical sense over the other. The handedness of the polymer chain can be switched with the sense of the circularly polarized light, leading to novel photoresponsive polyisocyanates.

Original languageEnglish (US)
Pages (from-to)7-13
Number of pages7
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume344
StatePublished - 2000

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Polyurethanes
Light polarization
polarized light
Polymers
Chromophores
chromophores
polymers
handedness
linkages
Irradiation
irradiation
causes
Experiments

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Investigation of photo-responsive chiral polyisocyanates. / Li, Jie; Schuster, Gary B.; Green, Mark M.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 344, 2000, p. 7-13.

Research output: Contribution to journalArticle

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