The polymerization process of claim 1, wherein the catalyst system comprises one or more Lewis acid(s) represented by the formula MRnX3-n; wherein M is a Group 13 metal; each R is a monovalent C1 to C12 hydrocarbon radical independently selected from the group consisting of an alkyl, aryl, arylalkyl, alkylaryl and cycloalkyl radicals; n is an integer from 1 to 3; and each X is a halogen. 37.