Synthesis and melt spinning of fully aromatic thermotropic liquid crystalline copolyesters containingm hydroxybenzoic acid units
Yazarlar (3)
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | JOURNAL OF APPLIED POLYMER SCIENCE | ||
| Dergi ISSN | 0021-8995 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI | ||
| Makale Dili | İngilizce | Basım Tarihi | 09-2002 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 03-07-2002 |
| Cilt / Sayı / Sayfa | 85 / 12 / 2580–2587 | DOI | 10.1002/app.3000 |
| Makale Linki | http://doi.wiley.com/10.1002/app.3000 | ||
| UAK Araştırma Alanları |
Polimer Bilimi
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| Özet |
| Fibers of fully aromatic thermotropic copolyesters based on p‐acetoxybenzoic acid (p‐ABA), hydroquinone diacetate (HQDA), terephthalic acid (TPA), and m‐acetoxybenzoic acid (m‐ABA) were prepared by a high‐temperature melt‐spinning technique. Two types of the copolyesters were prepared by a high‐temperature melt polycondensation reaction using 33 mol % of kink (m‐ABA) and 67 mol % linear monomer units (p‐ABA, TPA, HQDA), and characterized by differential scanning calorimetry (DSC), polarized optical microscopy, wide‐angle X‐ray diffraction (WAXD), and intrinsic viscosity measurements. The mechanical properties and the morphology of the fibers were also determined by tensile tester, WAXD, and scanning electron microscopy (SEM). The copolyesters exhibited phase‐separated nematic liquid crystalline morphology within a broad temperature range in an isotropic matrix. DSC analysis of the … |
| Anahtar Kelimeler |
| liquid-crystalline polymers | copolymerization | fibers | morphology | mechanical properties |
