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1 个结果
  • 简介:Discussionispresentedontheuseofthephotoisomerizationofazobenzenechromophoreinthedesignandpreparationofnovelfunctionalmaterials.Thetwosystemsreviewedareazobenzenepolymer-stabilizedliquidcrystalsandazobenzeneelastomers.Inthefirstcase,apolymernetworkcontainingazobenzenemoietiesisusedtoopticallyinduceandstabilizealong-rangeliquidcrystalorientationwithouttheneedoftreatingthesurfacesofthesubstrates.Thisopticalandrubbing-freeapproachwasappliedtonematicandferroelectricliquidcrystals.Inthesecondcase,anazobenzeneside-chainliquidcrystallinepolymerisgraftedontoastyrene-butadiene-styrenetriblockcopolymertoyieldaphotoactivethermoplasticelastomer.Coupledmechanicalandopticaleffectsmakepossibletheformationofdiffractiongratingsthatmaybeusefulformechanicallytunableopticaldevices.

  • 标签: 设计 偶氮苯聚合物 液晶 感光活性 发光材料 稳定性