| 摘要 |
PROBLEM TO BE SOLVED: To provide an optically active vinyl ether giving a liquid crystal polymer without lowering the liquid crystalline nature and inducing strong twist and provide a cholesteric liquid crystal polymer applicable by the application process of cholesteric liquid crystal polymer and, accordingly, enabling easy manufacture of a product having a large area in high efficiency, dispensing with a crosslinking treatment and forming an oriented film having excellent heat-resistance by ultraviolet ray irradiation. SOLUTION: The optically active vinyl ether is expressed by formula (1) (R<SP>*</SP>is a group expressed by formula (Ph1), (Ph2), (Ph3), (Ph4), (Ph5) or (Ph6), wherein * is an asymmetric carbon; Z<SP>4</SP>is single bond, COO,OCO, CH<SB>2</SB>O, OCH<SB>2</SB>, CH=CH, CH<SB>2</SB>CH<SB>2</SB>or C≡C; G<SP>1</SP>, G<SP>2</SP>, G<SP>3</SP>, G<SP>4</SP>, G<SP>5</SP>and G<SP>6</SP>are each independently H, a halogen or methyl; (o) is 1 or 0: and (p) is an integer of 1-20). COPYRIGHT: (C)2004,JPO |
