MICROBIAL DEGRADATION OF POLYMER SOLIDS - 2. A COMPARISON OF FUNGAL ATTACK IN CELLOPHANE AND AMYLOSE FILMS.

S. A. Bradley*, P. Engler, S. H. Carr

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Specimens of regenerated cellulose films (cellophane) and solution-cast amylose films have been subjected to microbial degradation. The degradation process was monitored by x-ray diffraction, infrared spectroscopy, and mechanical property tests. Crystalline index measurements of fungal degraded samples are found to increase, while cell-free enzymes disrupt both crystalline and non-crystalline regions, with a rise in weight average crystallite size and lattice distortion. Ultimate and yield tensile stress of amylose films decline during the degradation process. Enzymes appear to attack preferentially the non-crystalline regions of the two polymers investigated.

Original languageEnglish (US)
Pages (from-to)269-286
Number of pages18
JournalAppl Polym Symp
Issue number2
StatePublished - Jan 1 1973

ASJC Scopus subject areas

  • Engineering(all)

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