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A Rare Example of the Formation of Polystyrene-Grafted Aliphatic Polyester in One-Pot by Radical Polymerization

Title data

Shi, Yinfeng ; Zheng, Zhicheng ; Agarwal, Seema:
A Rare Example of the Formation of Polystyrene-Grafted Aliphatic Polyester in One-Pot by Radical Polymerization.
In: Chemistry : a European Journal. Vol. 20 (10 June 2014) Issue 24 . - pp. 7419-7428.
ISSN 1521-3765
DOI: https://doi.org/10.1002/chem.201400238

Official URL: Volltext

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

The radical copolymerization of cyclic ester beta-propiolactone (beta-PL) with styrene (St) at 120 degrees C, with a complete range of monomer ratios, is a rare example of a system providing graft copolymers (PSt-g-beta-PL) in one pot. The structure of the resulting beta-PL-St copolymers was proven by using a combination of different characterization techniques, such as 1D and 2D NMR spectroscopy and gel permeation chromatography (GPC), before and after alkaline hydrolysis of the polymers. The number of grafting points increased with an increasing amount of beta-PL in the feed. A significant difference in the reactivity of St and beta-PL and radical chain-transfer reactions at the polystyrene (PSt) backbone, followed by combination with the active growing poly(beta-PL) chains, led to the formation of graft copolymers by a grafting-onto mechanism.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: graft copolymers; radical polymerization; ring-opening polymerization; beta-propiolactone
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Profile Fields > Advanced Fields > Polymer and Colloid Science
Research Institutions > Research Centres > Bayreuth Center for Colloids and Interfaces - BZKG
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 02 Apr 2015 09:45
Last Modified: 02 Apr 2015 09:45
URI: https://eref.uni-bayreuth.de/id/eprint/9587