| Hexenyl functionalized poly(dimethylsiloxane) and methacryloyloxy functionalized poly(methyl methacrylate) (PMMA) and poly(dimethylsiloxane) (PDMS) macromonomers were synthesized using living polymerization techniques. The PDMS macromonomers were prepared by the anionic ring-opening polymerization of hexamethylcyclotrisiloxane followed by termination with a functionalized chlorosilane derivative. The methacryloyloxy functionalized PMMA macromonomers were prepared using group transfer polymerization with a protected hydroxyl functional initiator. The molar masses of the macromonomers ranged from 1000 g/mol up to 20000 g/mol with narrow molar mass distributions, less than 1.1, and high percent functionalities. The hexenyl functionalized PDMS macromonomers, having a range of molar masses, were statistically terpolymerized with 1-butene and sulfur dioxide to yield poly(1-butene sulfone)-g-PDMS copolymers of various chemical compositions up to 20 wt% PDMS. The bulk and surface phase morphologies were investigated using DSC, TEM, XPS, and water contact angle measurements. The graft copolymer was shown to be an excellent resist for electron beam lithography with a 4;In addition, preliminary studies were started using aluminum-27 NMR to study several different aluminum porphyrins based on (5,10,15,20-tetraphenyl)porphine (TPPH... |
