Effect of segmental motion on hydrolytic degradation of polyglycolide in electro-spun fiber mats

Abstract

Recently, environmentally degradable polymers have received great attention from the perspective of sustaining the aquatic environment. To control the degradation behavior of solid polymer materials in an aqueous phase, it...

Hydrolytic Aging of Degradable Poly(glycolic acid) at Different Temperatures

“…Hurell and Cameron , separated the degradation process into four stages: water diffusion, insertion crystallization, molecular weight reduction, and erosion through the diffusion of degraded small molecules and the homogenization of degradation throughout the sample. Matsuno et al studied the degradation behavior of PGA fiber by immersing the samples in phosphate-buffered saline at various temperatures. The results show that when the segmental motion of PGA in the fiber mats was released, the apparent crystallinity of the mats increased, meaning that PGA amorphous chains were cleaved and thus partially eluted into the aqueous phase.…”