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 language||English (US)|
|Number of pages||18|
|Journal||Appl Polym Symp|
|State||Published - Jan 1 1973|
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