Patent ID: 7939337

Claim:
A method of forming a modified surface acoustic wave substrate comprising the steps of: (a) reacting a cyclic carbosilane precursor with an initiator or catalyst to perform a ring opening polymerization reaction, thereby forming an intermediate polymer having the following structure: wherein q is an integer greater than or equal to 1; wherein Y is a hydrocarbon or carbosilane fragment derived from the ring opening polymerization of a cyclic carbosilane precursor; wherein X is a readily substitutable group such as a halide or alkoxide; (b) selecting a starting material independently selected from the group consisting of substituted metallated hydrocarbons and substituted metallated carbosilanes; (c) reacting said substituted metallated hydrocarbon or said substituted metallated carbosilane with the intermediate polymer, thereby forming a disubstituted silane or carbosilane intermediate having the structure: wherein R 8 and R 9 are alkenyl or aryl hydrocarbon groups or substituted carbosilane groups; and wherein q=1 to 10; (d) reacting said disubstituted silane or carbosilane intermediate having alkenyl or aromatic residues with hexafluoroacetone, thereby forming said substituted carbosilane polymer; and (e) affixing said substituted carbosilane polymer to a surface acoustic wave (SAW) substrate.