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A. E. Stępień

Assessment of the effect of biodegradation on the chemical structure

of poly(ether urethanes)

Polimery 2012, No 7-8, 545


DOI: dx.doi.org/10.14314/polimery.2012.545

Summary

Changes in the chemical structures of poly(ether urethanes) synthesized from 1,6-hexamethylene diisocyanate (HDI) and oligo(oxypropylene)diol (Rokopol 7P) or 4,4'-diphenylmethane diisocyanate (MDI) and poly(tetrahydrofuran) (PTHF) or MDI and poly(oxypropylene)diol (PPG), after degradation in the soil environment for a period of 120 days, were investigated using 1H NMR and MALDI-TOF spectral analysis. The structural changes were observed as a result of biodegradation of PUR made from aliphatic diisocyanate HDI and polyetherol Rokopol 7P, whereas the chemical structures of polyurethanes synthesized from aromatic diisocyanate MDI and polyetherols PPG or PTHF showed no differences before and after biodegradation.


Key words: poly(ether urethanes), polarity index, biodegradation, chemical structure

e-mail: astepien@univ.rzeszow.pl

A. E. Stępień (114.6 KB)
Assessment of the effect of biodegradation on the chemical structure of poly(ether urethanes)