| http://www.w3.org/ns/prov#value | - Preferred radiation-sensitive polymers for the practice of the invention include, for example, homopolymers and copolymers containing polytetrafluoroethylene, collagen, cellulose, poly(methyl-methacrylate), polyisobutylene, poly(2-methyl butene), poly(2-methyl pentene), and other polymeric blocks having alternating quaternary and secondary carbons, e.g., (???CH2???CR1R2???)n, where n is an integer
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