(705a) Fundamental Studies On the Radical Initiated Grafting of Vinyltrimethoxysilane Onto Polymeric Models Conference: AIChE Annual MeetingYear: 2011Proceeding: 2011 AIChE Annual MeetingGroup: Materials Engineering and Sciences DivisionSession: New Trends In Polymerization and Chain Modification Time: Thursday, October 20, 2011 - 12:30pm-12:55pm Authors: Nixon, E., Georgia Institute of Technology Momim, F., Georgia Institute of Technology Jha, R., Georgia Institute of Technology Verma, M., Georgia Institute of Technology Gelbaum, L., Georgia Institute of Technology Cross-linked polyethylenes have widespread applications such as insulators for current-carrying wires/cables and for hot water pipes, owing in part to their high upper use temperatures compared to non-crosslinked polyethylenes. Industrially, cross-linked polyethylene is often prepared via radical initiated grafting of polyethylene with vinyltrimethoxysilane (VTMS) followed by moisture curing. The efficiency of the grafting reaction is not optimal, as a large portion of the VTMS remains un-reacted and controlling the distribution and extent of grafting is difficult. We present our studies of VTMS grafting reactions on polymeric models to gain improved fundamental understanding of the radical initiated grafting mechanism. In particular, we will present experimental results using dodecane and heptane as model compounds.