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A Modified Synthesis of Liquid‐crystalline Poly(ethylene Terephthalate‐ Co ‐Oxybenzoate)s with Completely Random Chain Structure by Frank Böhme; Hartmut Komber; Dirk Leistner; Manfred Rätzsch is a Materials Science article available to read on EtoBox.

What is A Modified Synthesis of Liquid‐crystalline Poly(ethylene Terephthalate‐ Co ‐Oxybenzoate)s with Completely Random Chain Structure about?

## Abstract A new method for synthesis of liquid‐crystalline poly(ethylene terephthalate‐__co__‐oxybenzoate)s (PET/HBA) is proposed. In order to prevent formation of PET‐rich phases, complex monomers were used instead of PET. In comparison tc copolyesters synthesized conventionally, the new products proved to be much more homogeneous. ^13^C NMR measurements evidenced that the chain segment distribution is almost random. In contrast to literature data for a copolyester composition of PET/HBA (50/50 mol/mol) only a single glass transition was detected by dynamic mechanical analysis. The influence of transesterification reactions on the homogeneity is discussed.

Who reads A Modified Synthesis of Liquid‐crystalline Poly(ethylene Terephthalate‐ Co ‐Oxybenzoate)s with Completely Random Chain Structure?

Author

Frank Böhme; Hartmut Komber; Dirk Leistner; Manfred Rätzsch

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1022-1352)

Published

1994

Language

EN

Field

Materials Science (Physical Sciences)