Correlation Between in Vitro Elastomeric Force Degradation and Glass Transition Temperature determined by Dynamic Mechanical Analysis

Abstract

Elastomeric products from two different manufacturers (Groups A and B) were compared for their force decay in an in vitroexperiment for 4 weeks. Force values (F) were measured at 0 hour, 1 hour, 24 hours, 1, 2, 3 and 4 weeks. Samples were subjected to DMA for its corresponding Tg. Mean force and Tg were compared with one-way analysis of variance (ANOVA) and post-hoc Duncan multiple range test. Two-way ANOVA was used to assess the effects between Groups and different time periods. Relationship between force and Tg were studied with regression analysis