US 11,807,728 B2
Fluorine-containing polycaprolactone film and preparation method therefor
Zhanxiong Li, Suzhou (CN); Haipeng Wang, Suzhou (CN); and Wulong Li, Suzhou (CN)
Assigned to SOOCHOW UNIVERSITY, Suzhou (CN)
Filed by SOOCHOW UNIVERSITY, Suzhou (CN)
Filed on Nov. 29, 2020, as Appl. No. 17/106,144.
Application 17/106,144 is a continuation of application No. PCT/CN2018/088911, filed on May 29, 2018.
Prior Publication US 2021/0079184 A1, Mar. 18, 2021
Int. Cl. C08G 81/02 (2006.01); C08J 5/18 (2006.01); B29D 99/00 (2010.01); C08G 63/91 (2006.01); B29K 67/00 (2006.01)
CPC C08J 5/18 (2013.01) [B29D 99/005 (2013.01); C08G 63/91 (2013.01); C08G 81/02 (2013.01); B29K 2067/00 (2013.01); B29K 2995/006 (2013.01); C08J 2367/04 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of preparing a fluorinated polycaprolactone membrane, comprising the following steps:
(1) reacting a polycaprolactone with an aminoalcohol compound to prepare a hydroxyl-terminated polycaprolactone;
(2) reacting the hydroxyl-terminated polycaprolactone with an anhydride to prepare a carboxyl-terminated polycaprolactone;
(3) reacting an ethylene glycol bromoisobutyrate with a fluorinated acrylate to prepare a hydroxyl-terminated fluoro-acrylate polymer;
(4) reacting the carboxyl-terminated polycaprolactone with the hydroxyl-terminated fluoro-acrylate polymer to prepare a fluorinated polycaprolactone;
(5) at room temperature, dissolving the fluorinated polycaprolactone in an organic solvent to prepare a solution; then naturally drying the solution at room temperature to prepare the fluorinated polycaprolactone membrane.