Open AccessTổng hợp polycaprolactone có nhóm tiol cuối mạch thông qua phản ứng tiol-michael
Author(s) -
Phùng Thị Thùy Dung,
Trương Thu Thủy,
Nguyễn Trần Hà,
Nguyễn Thị Anh Thư
Publication year - 2019
Publication title -
tạp chí khoa học đại học sư phạm thành phố hồ chí minh
Language(s) - English
Resource type - Journals
ISSN - 2734-9918
DOI - 10.54607/hcmue.js.15.12.2324(2018
Subject(s) - polycaprolactone , acrylate , polymer chemistry , thiol , diol , michael reaction , acryloyl chloride , click chemistry , chemistry , yield (engineering) , materials science , catalysis , organic chemistry , copolymer , composite material , polymer
Functional polycaprolactones (PCL) have great potential for opening a new frontier in material design. We report here a method for preparing a thiol end-functionalized telechelic polycaprolactone using a straightforward and highly efficient process via the thiol-acrylate Micheal click addition reaction. Firstly, we esterified PCL diol with excess amount of acryloyl chloride resulting acrylate- end capped polycaprolactone (PCL-diacrylate). Then, thiol-end capped polycaprolactone (PCL-dithiol) was prepared by the reaction between 2,2′-(ethylenedioxy)diethanethiol and PCL-diacrylate in the present of base catalyst (Thiol-ene reaction). Both steps were carried out in the mild condition with high yield. The obtained product was structural analyzed using 1H NMR spectroscopy.