▎ 摘　　要

NOVELTY - A spirooxazine photochromic group-modified graphene oxide (I), is new. USE - New spirooxazine photochromic group-modified graphene oxide is used for optical information storage and optical switch. ADVANTAGE - The spirooxazine photochromic group-modified graphene oxide has strong thermal fading stability and is homogeneous at molecular level. DETAILED DESCRIPTION - A spirooxazine photochromic group-modified graphene oxide of formula (I), is new. GO=graphene oxide; p,x,y=1-1000; A'=H or CH3;and B'=methyl acetate, propan-2-one or methylbenzene. An INDEPENDENT CLAIM is included for preparation of spirooxazine photochromic group-modified graphene oxide (I).