Synthesis of POSS−Methyl Methacrylate-Based Cross-Linked Hybrid Materials

摘要: A series of POSS(PEG)n=2-6 macromonomers were further functionalized by reaction with methacryloyl chloride and then polymerized methyl methacrylate to produce a hybrid materials where the amounts used as cross-linkers varied from 0.1 0.5 mol %. Thermal investigations using TGA DSC techniques revealed that both POSS concentrations PEG chain length play important roles in defining structure−property relationships. Incorporation always increased thermal stability. Although is bulky multifunctional cross-linker, glass transitions did not increase. In some instances bulkiness group created free volume separation, which led reduction transition temperature.