| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of producing a photochromic polyester, which does not use a toxic metal catalyst. <P>SOLUTION: The method for producing the photochromic polyester includes: a step (a) of providing a reaction solution having at least one ester monomer, a photochromic compound having or functionalized to have at least one hydroxyl group, and a metal-free catalyst; a step (b) of reacting the at least one ester monomer and the photochromic compound using the metal-free catalyst to produce a polymeric product, where the polymeric product has a photochromic polyester; and a step (c) of separating the polymeric product from the reaction solution. The photochromic polyester includes a photochromic compound covalently linked to a polyester and the polyester is obtained by polymerizing a lactone. <P>COPYRIGHT: (C)2012,JPO&INPIT |
