Two types of radial GRIN rods 7mm and 10mm in diameter respectively, have been prepared by liquid phase diffusion copolymeri- zation of two binary monomer systems: DAIP-MMA and DAP-MMA. They both possess fine light-focusing properties.

• 本文用液相扩散共聚法制备DAIP-MMA和DAP-MMA两种二元共聚物径向梯度棒,制得了直径为7mm的DAIP-MMA径向梯度棒和直径为11mm的DAP-MMA径向梯度棒。