Crosslinking of polycaprolactone in the pre‐gelation region

摘要: Polycaprolactone (PCL) crosslinked below the gel point either with peroxide or by exposure to ionizing radiation was compared Theological studies. As a result of crosslinking, PCL increases in viscosity and shear rate dependence exhibits increased dynamic moduli that converge at higher frequencies. The analysis gases evolved from γ-irradiated shows yield hydrogen (G = 0.39) approximates sum yields carbon monoxide 0.19) dioxide 0.21). It is inferred equal amounts crosslinking scission irradiation. result, converted irradiation densely branched system. Steady viscosities do not depend strongly on dose overlap rates. Similarly, moduli, especially G″, become less sensitive dose.