Copolyester studies. V. Preparation and characterization of tetramethylene terephthalate–poly(tetramethylene oxide) random block copolymers
- 1 May 1980
- journal article
- research article
- Published by Wiley in Journal of Applied Polymer Science
- Vol. 25 (5) , 855-867
- https://doi.org/10.1002/app.1980.070250513
Abstract
Random block copolymers of tetramethylene terephthalate and polytetrahydrofuran (PTHF) were prepared by melt polycondensation. Five different molecular weights of PTHF were used in the polymerizations with up to 30% by weight incorporation. The copolymers so obtained were characterized in terms of their molecular weight by means of endgroup analysis and solution viscometry. Compositions were established by nuclear magnetic resonance spectroscopy. Thermal properties were studied by differential scanning calorimetry and dynamic mechanical methods. Melting and glass transition temperatures are discussed in terms of the structural differences, particularly the effect of polyether composition and block size on chain flexibility.Keywords
This publication has 15 references indexed in Scilit:
- Copolyester studies. VI. Melt spinning and mechanical properties of tetramethylene terephthalate–poly(tetramethylene oxide) random block copolymersJournal of Applied Polymer Science, 1980
- Copolyester studies. II. Melting and crystallization behavior of tetramethylene terephthalate–tetramethylene sebacate copolymersJournal of Applied Polymer Science, 1979
- Copolyester studies. I. Preparation and characterization of tetramethylene terephthalate–tetramethylene sebacate copolymersJournal of Applied Polymer Science, 1979
- Copolyester studies. III. Melt-spinning, drawing, and mechanical properties of tetramethylene terephthalate–tetramethylene sebacate copolymer fibersJournal of Applied Polymer Science, 1979
- Segmented polyether ester copolymers—A new generation of high performance thermoplastic elastomersPolymer Engineering & Science, 1974
- Polyester‐polyether block copolymers. I. Wide‐angle X‐ray diffraction studies of poly(hexamethylene terephthalate)/poly(oxytetramethylene) and related block polymersBritish Polymer Journal, 1973
- Polyätherester‐Block‐Copolymere – Eine Gruppe neuartiger thermoplastischer ElastomererDie Angewandte Makromolekulare Chemie, 1973
- Morphology of segmented polyester thermoplastic elastomersJournal of Polymer Science: Polymer Symposia, 1973
- The frequency dependence of the glass transitionJournal of Polymer Science Part B: Polymer Letters, 1963
- Crystallization behavior and melting properties of m‐phenylene group containing polyestersJournal of Polymer Science, 1959