Modulation of the lower critical solution temperature of 2-Alkyl-2-oxazoline copolymers |
| |
Authors: | Stephan Huber Rainer Jordan |
| |
Institution: | 1. Wacker-Lehrstuhl für Makromolekulare Chemie, Department Chemie, Technische Universit?t München, Lichtenbergstr. 4, 85747, Garching, Germany
|
| |
Abstract: | Living cationic copolymerization of 2-isopropyl-2-oxazoline with 2-n-propyl-, 2-n-butyl-, and 2-n-nonyl-2-oxazoline results in gradient copolymers of defined composition, narrow molar mass distributions (PDI = 1.09–1.3),
and defined overall degree of polymerization, set to n = 25 for all polymers. The introduction of monomer units of stronger amphiphilic character results in a systematic decrease
of the lower critical solution temperature (LCST). The LCST modulation can be controlled by the choice of the comonomer as
well as the comonomer ratio and was tuned in the temperature range from 46 to 9 °C.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. |
| |
Keywords: | Poly(2-oxazoline) LCST Thermo-responsive polymer Living cationic polymerization Copolymer |
本文献已被 SpringerLink 等数据库收录! |
|