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Thermoplastic liquid crystalline triblock elastomers, 1. Synthesis and phase behaviour
Author(s) -
Sänger Jörg,
Gronski Wolfram
Publication year - 1998
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/(sici)1521-3935(19980401)199:4<555::aid-macp555>3.0.co;2-y
Subject(s) - copolymer , thermoplastic elastomer , differential scanning calorimetry , polystyrene , polymer chemistry , polybutadiene , side chain , materials science , polymer , elastomer , phase (matter) , liquid crystal , thermoplastic , chemistry , composite material , organic chemistry , thermodynamics , physics , optoelectronics
Side‐chain liquid crystalline ABA triblock copolymers with a backbone of polystyrene‐ block ‐1,2‐polybutadiene‐ block ‐polystyrene and 5‐[(4′‐cyano‐4‐biphenylyl)oxy]pentanoic acid as side chains were synthesized. The block copolymers possess narrow molecular weight distributions. The liquid crystalline (LC) phase behaviour was characterized by means of differential scanning calorimetry (DSC) and X‐ray scattering. Nematic and smectic polymers are accessible by variation of the spacer length.