Polímeros: Ciência e Tecnologia
https://app.periodikos.com.br/journal/polimeros/article/doi/10.1590/S0104-14282005000200011
Polímeros: Ciência e Tecnologia
Scientific & Technical Article

Cost-Effective Synthesis of Environmentally Benign Materials on the Basis of Poly-3-Hydroxybutyrate

Sulzberger, P.; Kohler, R.; Seliger, H.; Häberlein, H.

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Abstract

As an example for an environmentally benign and low-cost material we prepared blends from 1. copolyesterurethanes (PEU) and 2. cellulose acetate recycling material (CAR). The copolyester-urethanes were prepared by joining blocks of α, ω-(poly-(R)-3-hydroxybutyrate)-diol and poly-butylenglycol-adipate-diol with hexamethylene diisocyanate. Fibrous CAR was transformed into a short-fiber felt by textile technology and calendared into the PEU melt. The processing of the blends was done at 80 - 100°C mainly by injection molding. The mechanical properties of the tough-elastic materials were studied with respect to the influence of the PEU composition and the ratio of CAR admixture. The starting materials, (R)-PHB and cellulose derivatives are obtained from agrarian resources. Therefore, the resulting polymers are stable under conditions of usage, yet readily bio-degradable on soil deposition. Mixing with cellulose acetate waste material allows for cost-effective production of such blends.

Keywords

Blends, copolyester-urethane, cellulose acetate, recycling material

References



1. Doi, Y. - Microbial Polyesters, VCH, New York, Weinheim, (1990).

2. e.g. Ciardelli, G.; Kojima, K.; Lendlein, A. Neuenschwander, P. & Suter, U. W. - Macromol. Chem. Phys. 198, 2667- 2688 (1997); A. Lendlein, P. Neuenschwander, U.W. Suter, Macromol. Chem. Phys. 199, 2785-2796 (1998).

3. Mothes, G. & Ackermann, J.-U. - Abstract, 21st DECHEMA Biotechnology Annual Conference, Munich, P 127 (2003).

4. Review: Muller, H.-M. & Seebach, D. - Angew. Chem. 105, 483-509 (1993).

5. Thiruvenkatam, R. & Scholz, C. - Polymer Preprints 41 (1), 1076-1077 (2000).

6. Grassie, N.; Murray, E. J. & Holmes, P. A. - Polym. Degrad. Stab. 47 - 61., 95 - 103 (1984).

7. Seliger, H. - Proceedings, 6th Arab Internat. Conference on Polymer Science and Technology, Ismailia / Sharmel- Sheikh, 401-419 (2001).

8. Saad, G. R. ; Mansour, A.A. & Named, A.H. - Polymer 38, 4091-4096 (1997); Mansour, A. A.; Saad, G. R. & Named, A. H. - Polymer 40, 5377-5391 (1999).

9. Review: Sasikala, C. & Ramana, C.V. - Adv. Appl. Microbiol. 42, 97-218 (1996).

10. Saad, G. R.; Lee, Y. J. & Seliger, H. J. - Appl. Poly. Sci. 83, 703-718 (2002).

11. For previous work on PHB blends see e.g.: El-Taweel, S. H.; Hahne, G. W. H.; Mansour, A. A.; Stoll, B. & Seliger, H. - Polymer 45, 983-992 (2004). 12.We thank PUB Inc., Serrana, S.P., and Dr. U. Hanggi, Biomer Co., for generous gifts of (R)-PHB.

13. Reeve, M. S.; McCarthy, S.P. & Gross, R. A. - Am. Chem. Soc., Polymer Preprints 30, 437-438 (1990); Macromolecules 26, 888-894 (1993).

14. Jahnke, M. - Revised Instruction for the BODIS Test, IBR Research Co., Hannover, 1993, cited from Fischer, R.; Kottmair, A. & Hoppenheidt K. - Report, BIfA, Augsburg, (2001).

15. BODIS tests were kindly done by Dr. K. Hoppenheidt, Bayer. Institut fir Angewandte Umweltforschung und -technik, Augsburg.

16. Saad, G. R. & Seliger, H. - Polymer Degradation and Stability 83,101410 (2004).

17. Moriyoshi, K.; Ohmoto, T.; Ohe, T. & Sakai, K. - Biosci. Biotechnol. Biochem. 66, 508-515 (2002); ibid. 67, 250 - 257 (2003).
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