Thermal behavior and tensile properties of poly(ethylene terephthalate-co-ethylene isophthalate)
| Autor: | George P. Karayannidis, Irini D. Sideridou, Anastasios Sakalis, Demetris N. Bikiaris, Demetris N. Zamboulis |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Dimethyl terephthalate
Materials science Ethylene Polymers and Plastics General Chemistry Surfaces Coatings and Films law.invention chemistry.chemical_compound Differential scanning calorimetry chemistry law Polymer chemistry Materials Chemistry Copolymer Polyethylene terephthalate Crystallization Glass transition Ethylene glycol |
| Zdroj: | Journal of Applied Polymer Science. 78:200-207 |
| ISSN: | 1097-4628 0021-8995 |
| DOI: | 10.1002/1097-4628(20001003)78:1<200::aid-app240>3.0.co;2-r |
| Popis: | Poly(ethylene terephthalate) (PET) and poly(ethylene isophthalate) (PEI) homopolymers were synthesized by the two-step melt polycondensation process of ethylene glycol (EG) with dimethyl terephthalate (DMT) and/or dimethyl isophthalate (DMI), respectively. Nine copolymers of the above three monomers were also synthe- sized by varying the mole percent of DMI with respect to DMT in the initial monomer feed. The thermal behavior was investigated over the entire range of copolymer com- position by differential scanning calorimetry (DSC). The glass transition (Tg), cold crystallization (Tcc), melting (Tm), and crystallization (Tc) temperatures have been determined. Also, the gradually increasing proportion of ethyleno-isophthalate units in the virgin PET drastically differentiated the tensile mechanical properties, which were determined, and the results are discussed. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 200 -207, 2000 |
| Databáze: | OpenAIRE |
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