Sum-frequency vibrational spectroscopic study of a rubbed polymer surface

Xing Wei, Xiaowei Zhuang, Seok Cheol Hong, Tomohisa Goto, Y. R. Shen

Research output: Contribution to journalArticlepeer-review

157 Citations (Scopus)


Sum-frequency vibrational spectroscopy has been used to probe the chain orientation of polyvinyl alcohol at the surface after rubbing. The distribution function of the chain orientation is determined quantitatively. The orientational order parameter of the chains deduced from the distribution matches well with that of a liquid crystal monolayer deposited on the polymer, proving that the polymer surface can align a liquid crystal film through orientational epitaxy.

Original languageEnglish
Pages (from-to)4256-4259
Number of pages4
JournalPhysical review letters
Issue number21
Publication statusPublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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