Thermal and morphological properties of thermotropic liquid crystalline copolyesters containing poly ethylene terephthalate 4 hydroxyphenylacetic acid and main chain rigid aromatic units
Yazarlar (4)
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Polymer International
Dergi ISSN 0959-8103 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 01-2010
Cilt / Sayı / Sayfa 59 / 6 / 749–755 DOI 10.1002/pi.2779
Makale Linki http://doi.wiley.com/10.1002/pi.2779
Özet
Thermotropic liquid‐crystalline polymers (TLCPs) have aroused considerable interest due to their attractive properties as high‐performance materials. Significant research attention has been devoted to investigating the relationship among monomer structures, syntheses and end‐use properties of TLCPs. The study reported here concerns the preparation, characterization and melt spinning of novel copolyesters containing two different flexible units together with two different aromatic units in the polymer chains. A range of copolyesters based on p‐hydroxybenzoic acid (p‐HBA), m‐hydroxybenzoic acid, p‐hydroxyphenylacetic acid and poly(ethylene terephthalate) were synthesized. The liquid crystallinity, thermal properties and degrees of crystallinity of these copolyesters were investigated using hot‐stage polarized light microscopy, differential scanning calorimetry, thermogravimetry and wide‐angle X‐ray …
Anahtar Kelimeler
Degree of crystallinity | Fibre | Liquid-crystalline polymers | PET | Thermal properties