摘要

Poly(methylphenylsilane)-poly(benzylmethacrylate) (PMPS-PBzMA) block copolymer was prepared by photopolymerization of benzylmethacrylate (BzMA) monomer using PMPS as a macromolecular photo-radical initiator. Its application as a photobleachable polymer material for optical waveguide fabrication was investigated. By changing weight ratios of BzMA to PMPS during polymerization, the obtained PMPS-PBzMA showed different photo-induced refractive changes. PMPS-PBzMA proved to have good photosensitivity, optical properties, and thermal stability. A multimode PMPS-PBzMA optical waveguide was achieved, with a propagation loss of 1.0 dB/cm at 1310 nm.