| 摘要 |
PROBLEM TO BE SOLVED: To provide a new compound having a refractive index changable by photoirradiation, large in variation of the refractive index and easily forming films, to provide a production method thereof, and to provide refractive index converting materials. SOLUTION: A novolak derivative having a recurring unit represented by general formula (1) (R<SP>1</SP>is a specific univalent organic group including an aromatic ring) is provided. COPYRIGHT: (C)2008,JPO&INPIT
|
