Premium
Liquid Crystalline Polythiophenes With Amphiphilic Side Chains
Author(s) -
Yoon YoungSik,
Ko Taeyun,
Chung Jaeyub,
Chung JaeSeung,
Kim Jinjoo,
Lee JongChan
Publication year - 2012
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201100576
Subject(s) - side chain , polymer chemistry , thiophene , polymerization , conjugated system , amphiphile , liquid crystal , absorption (acoustics) , chemistry , phase (matter) , absorption spectroscopy , materials science , crystallography , polymer , copolymer , organic chemistry , physics , optoelectronics , quantum mechanics , composite material
A series of poly(thiophene) derivatives with decyl‐oligo(oxyethylene) side groups, (PD n ET) is synthesized via oxidative coupling polymerization. PD3ET and PD4ET with longer oligo(oxyethylene) units exhibited a liquid crystalline phase with well‐ordered lamella structures, although PD3ET showed a more ordered structure than PD4ET. PD1ET and PD2ET have shorter oligo(oxyethylene) groups than PD3ET and show less‐ordered structures with liquid‐crystalline phase observed. The UV‐vis spectra indicated that the maximum absorption wavelengths of PD n ET increase when the number of oxyethylene units increases from 1 to 3; however, the maximum absorption wavelength of PD4ET is lower than that of PD3ET. Therefore, the most ordered and conjugated structures are obtained when the number of oxyethylene units is three.