Synthesis, properties and biodegradability of polyesters based on 1,3‐propanediol

Macromolecular Chemistry and Physics - Tập 195 Số 2 - Trang 793-802 - 1994
Uwe Witt1, Rolf‐Joachim Müller1, Josef Augusta2,1, Hartmut Widdecke1, Wolf‐Dieter Deckwer1
1GBF, Cesellschaft für Biotechnologische Forschung, Mascheroder Weg 1, D-38124 Braunschweig, Germany
2Austria Recycling, Verein zur Förderung von Recycling und Umweltschutz in Österreich, Obere Donaustraße 71, A-1025 Wien.

Tóm tắt

AbstractAliphatic homopolyesters and copolyesters based on 1,3‐propanediol and containing terephthalic acid as aromatic compounds and sebacic acid as aliphatic compound were synthesized by condensation in bulk. Intrinsic viscosity and weight‐average molecular weight were measured. Melting temperatures were studied by differential scanning calorimetry. For all polyesters the biodegradability was tested. Test media were inoculated with either municipal compost eluates or decanted sewage sludge. Criteria measured were visible changes, weight loss, and scanning electron microscopy indicating the visible changes of the surface. Compositions of copolyesters were characterized by 13C NMR spectroscopy. As a major result it is concluded that biodegradability depends substantially on the sequential structure of the polymer.

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Tài liệu tham khảo

1992, Polyester

Weissermel K., 1988, Industrielle Organische Chemie

Cornils B., 1976, Chem.‐Ztg., 100, 504

JP 6359412 (1986) Teijin Ltd invs.:

Iohara K., 1988, Chem. Abstr., 109, 56500z

10.1002/cite.330630714

1980, 1,3‐Propandiol

10.1007/BF00176511

10.1007/BF00183234

10.1007/BF00208143

10.1002/ange.19881000107

10.1126/science.208.4447.990

Swift G., 1992, Polym. Mat. Sci. Eng., 67, 129

Brandrup J., 1989, Polymer Handbook

10.1002/cite.330640504

10.1021/ja01383a042

10.1002/macp.1950.020050101

Cowie J. M. G., 1976, Chemie und Physik der Polymeren

Franck A., 1988, Kunststoff‐Kompendium

10.1271/bbb1961.42.1071

10.1177/004051759106101109

Müller R.‐J., 1993, Mater. Org., 27, 179

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Thông tin xuất bản

Macromolecular Chemistry and Physics

Tập 195 Số 2

793-802

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