Crosslinking of Poly (propylene carbonate) by Peroxide Crosslinking Agent Dicumyl Peroxide (DCP)

摘要

The gel content, glass transition temperature (Tg) , tensile strength, and elastic modulus of crossliked Poly (propylene carbonate) (PPC) were investigated using modulated differential scanning calorimetry (MDSC) and tensile tester respectively. PPC can be crosslinked by peroxide crosslinking agent Dicumyl peroxide (DCP) and in a solution casting and heating process. The concentration of DCP showed a great influence on the crosslinking of PPC. The crosslinking of PPC resulted in the increase in gel content,, mechanical strength, elastic modulus and Tg. The optimum of mechanical properties may be attained at 1 % DCP