7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
https://doi.org/10.1002/app.46934
Copy DOIJournal: Journal of Applied Polymer Science | Publication Date: Jul 19, 2018 |
Citations: 12 |
ABSTRACTCarboxyl‐terminated polybutadiene (CTPB) is a widely used telechelic liquid rubber, which is mainly prepared by anionic or free‐radical polymerization of 1,3‐butadiene. It is known that the microstructure of liquid polybutadiene rubber largely affects its processability and mechanical properties. However, it is hard to control its microstructure in the free radical or anionic polymerization. In this study, a series of CTPB with highcis‐1,4 content has been prepared for the first time via the oxidolysis and selective oxidation ofcis‐polybutadiene rubber (BR). Hydrogenation of their CC double bonds withp‐toluenesulfonyl hydrazide/tri‐n‐propylamine (TSH/TPA) reagents afforded carboxyl‐terminated polyethylenes (CTPE). For comparison, commercial CTPB (FCTPB), prepared by free‐radical polymerization of 1,3‐butadiene, was also hydrogenated and gave FCTPE with more ethyl branches. Linear CTPE (L‐CTPE) was synthesized by ring‐opening metathesis polymerization of 1,5‐cyclooctadiene in the presence of maleic acid and subsequent hydrogenation. The microstructure of the polymers was established by FT‐IR,1H NMR,13C NMR, and GPC and their thermal properties were determined by DSC and TGA. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2019,136, 46934.
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.