Synthesis and Properties of Thermotropic Liquid Crystalline Copolyesters Containing p Hydroxyphenylacetic Acid and m Hydroxybenzoic Acid Units
Yazarlar (3)
Prof. Dr. Zekeriya YERLİKAYA Kastamonu Üniversitesi, Türkiye
Serpil Aksoy
Gazi Üniversitesi, Türkiye
Gazi Üniversitesi, Türkiye
Erdal Bayramli
Middle East Technical University (Metu), Türkiye
Middle East Technical University (Metu), Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Journal of Macromolecular Science Pure and Applied Chemistry | ||
| Dergi ISSN | 1060-1325 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI | ||
| Makale Dili | İngilizce | Basım Tarihi | 03-2006 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 01-03-2006 |
| Cilt / Sayı / Sayfa | 43 / 3 / 433–447 | DOI | 10.1080/10601320600575025 |
| Makale Linki | http://www.tandfonline.com/doi/abs/10.1080/10601320600575025 | ||
| UAK Araştırma Alanları |
Polimer Bilimi
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| Özet |
| A series of copolyesters based on p‐acetoxybenzoic acid (p‐ABA), m‐acetoxybenzoic acid (m‐ABA), and p‐acetoxyphenylacetic acid (p‐APAA) were prepared by a modified melt polycondensation reaction. The effect of linear p‐ABA structure, kink m‐ABA and flexible p‐APAA moiety on the properties of copolyesters were systematically investigated. The copolyesters were characterized by DSC, thermogravimetric analysis, 1H‐NMR, polarized optical microscopy, X‐ray diffraction, and intrinsic viscosity measurements. The copolyesters exhibited nematic liquid‐crystalline phases in a broad temperature range of about 110°C, when the content of linear p‐ABA units was over 55 mol%. DSC analysis of the anisotropic copolyesters revealed broad and weak endotherms associated with the nematic phases, and the melting temperatures were found to be in the processable region. The degree of crystallinity, thermal … |
| Anahtar Kelimeler |
| Flexible units | Liquid-crystalline polymers | Polycondensation | Thermal properties | X-ray |
Science Direct
Synthesis and Properties of Thermotropic Liquid Crystalline Copolyesters Containing p Hydroxyphenylacetic Acid and m Hydroxybenzoic Acid Units
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 6 |
| Scopus | 6 |
| Google Scholar | 7 |