Synthesis and photoluminescence of liquid crystalline poly(1-alkynes)

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jacky Wing Yip Lam
  • Yuping Dong
  • Kevin Ka Leung Cheuk
  • Zhiliang Xie
  • Ben Zhong Tang

Detail(s)

Original languageEnglish
Pages (from-to)143-146
Journal / PublicationThin Solid Films
Volume417
Issue number1-2
Publication statusPublished - 30 Sep 2002
Externally publishedYes

Conference

TitleProceedings of the International Conference on Materials for
PlaceSingapore
CitySingapore
Period1 - 6 July 2001

Abstract

Liquid crystalline poly(1-alkynes) with different functional bridges and lengths of alkyl spacer {-[HC=C(CH2)3O-Biph-OCO(CH2)10CH 3]n- [1(3); Biph=4,4′-biphenyl] and -[HC=C(CH2)mOCO-Biph-OCO(CH2)10CH 3]n-[2(m); m=3, 4]} are synthesized in high yields (up to 84%) by WCl6-Ph4Sn catalyst in dioxane at 60 °C. Polymer 1(3) shows atypical SmA texture. Focal-conic textures of SmA phase are, however, observed in 2(m). Whereas 1(3) emits weakly at 367 nm, intense blue emissions (λmax∼350 nm) are observed in 2(m), whose intensity increases with the spacer length.  

Research Area(s)

  • Light-emitting polymers, Liquid crystalline conjugated polymers, Photoluminescence, Poly(1-alkynes), Substituted polyacetylenes

Citation Format(s)

Synthesis and photoluminescence of liquid crystalline poly(1-alkynes). / Lam, Jacky Wing Yip; Dong, Yuping; Luo, Jingdong; Cheuk, Kevin Ka Leung; Xie, Zhiliang; Tang, Ben Zhong.

In: Thin Solid Films, Vol. 417, No. 1-2, 30.09.2002, p. 143-146.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review