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- Title
Preparation and characterization of poly(ethylene terephthalate) copolyesters modified with sodium-5-sulfo-bis-(hydroxyethyl)-isophthalate and poly(ethylene glycol).
- Authors
Zhao, Ming‐Liang; Li, Fa‐Xue; Yu, Jian‐Yong; Wang, Xue‐Li
- Abstract
ABSTRACT Two types of poly(ethylene terephthalate) (PET) copolyesters were successfully prepared with sodium-5-sulfo-bis-(hydroxyethyl)-isophthalate (SIPE) and poly(ethylene glycol) (PEG) units with different molecular weights named as cationic dyeable polyester and easy cationic dyeable polyester. Their chemical and crystalline structures were characterized by the nuclear magnetic resonance (NMR), wide angle X-ray diffraction (WAXD), and small angle X-ray scattering measurement, and their thermal properties were tested by differential scanning calorimetry and thermogravimetric analysis, respectively. NMR experimental results showed that the actual molar ratio of comonomers was basically consistent with the correlative feed ratio. WAXD results indicated that the crystalline structures of prepared copolyesters were similar to that of PET. Moreover, the glass transition temperature, melting temperature, and thermal degradation temperature were found to decrease with the reduction of the
- Subjects
POLYETHYLENE terephthalate; POLYESTERS; PHTHALATE esters; POLYETHYLENE glycol; MOLECULAR weights; X-ray diffraction
- Publication
Journal of Applied Polymer Science, 2014, Vol 131, Issue 3, pn/a
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.39823