Photo‐Induced Orientation of a Film of Ladderlike Polysiloxane Bearing Dual Photoreactive Side Groups

H.W. Gu; P. Xie; D.‐Y. Shen; P.‐F. Fu; J.‐M. Zhang; Z.‐R. Shen; Y.‐X. Tang; L. Cui; B. Kong; X.‐F. Wei; Q. Wu; F.‐L. Bai; R.‐B. Zhang

doi:10.1002/adma.200305241

journal article·2003-08-15

Photo‐Induced Orientation of a Film of Ladderlike Polysiloxane Bearing Dual Photoreactive Side Groups

H.W. Gu, P. Xie, D.‐Y. Shen, P.‐F. Fu, J.‐M. Zhang, Z.‐R. Shen, Y.‐X. Tang, L. Cui, B. Kong, X.‐F. Wei, Q. Wu, F.‐L. Bai, R.‐B. Zhang

Advanced Materials· Volume 15· Issue 16

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Abstract

A newly designed ladder‐like polysiloxane (LPS) containing dual photoreactive side groups has been synthesized for the purpose of generating high‐quality photo‐alignment layers with controllable pretilt angle (∼ 1–7°, see Figure and cover). Integrated spectroscopic methods of UV dichroism, surface‐enhanced Raman scattering (SERS), and FT‐IR are used together for the first time to elucidate the photo‐alignment mechanism and the real cause of the high pretilt angle.

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Research context

OpenAlex topics: Silicone and Siloxane Chemistry · Advanced Polymer Synthesis and Characterization · Mesoporous Materials and Catalysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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