|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|5201761||1502905||2014||6 صفحه PDF||سفارش دهید||دانلود رایگان|
The materials design focused on biomedical applications involves the analysis under physiological simulated conditions because it is of prime importance the determination of life-time and reliability of these materials. The goal of this work were the study of the biostability of a series of segmented thermoplastic polyurethane elastomers (STPUE), containing PTHF and PCL blocks as soft segment (SS), by means of hydrolytic degradation tests for 3 years to determine the useful life-time. Physico-chemical and thermal properties were analyzed from the viewpoint of microdomain structure. The results suggested a reorganization in hard and soft segment ordered structure by means of a greater number of hydrogen bonds which contributed to phase separation and hence low-water uptake, being less susceptible to hydrolytic attack.
Journal: Polymer Degradation and Stability - Volume 108, October 2014, Pages 195-200