TY  - JOUR
A1  - Miasnikova, Anna
A1  - Laschewsky, André
T1  - Influencing the phase transition temperature of poly(methoxy diethylene glycol acrylate) by molar mass, end groups, and polymer architecture
JF  - Journal of polymer science : A, Polymer chemistry
N2  - The easily accessible, but virtually overlooked monomer methoxy diethylene glycol acrylate was polymerized by the RAFT method using monofunctional, difunctional, and trifunctional trithiocarbonates to afford thermoresponsive polymers exhibiting lower critical solution temperature-type phase transitions in aqueous solution. The use of the appropriate RAFT agent allowed for the preparation and systematic variation of polymers with defined molar mass, end-groups, and architecture, including amphiphilic diblock, symmetrical triblock, and triarm star-block copolymers, containing polystyrene as permanently hydrophobic constituent. The cloud points (CPs) of the various polymers proved to be sensitive to all varied parameters, namely molar mass, nature, and number of the end-groups, and the architecture, up to relatively high molar masses. Thus, CPs of the polymers can be adjusted within the physiological interesting range of 2040 degrees C. Remarkably, CPs increased with the molar mass, even when hydrophilic end groups were attached to the polymers.
KW  - water-soluble polymers
KW  - diblock copolymers
KW  - triblock copolymers
KW  - star-block copolymers
KW  - reversible addition fragmentation chain transfer (RAFT)
KW  - LCST
KW  - stimuli-sensitive polymers
Y1  - 2012
U6  - https://doi.org/10.1002/pola.26116
SN  - 0887-624X
VL  - 50
IS  - 16
SP  - 3313
EP  - 3323
PB  - Wiley-Blackwell
CY  - Hoboken
ER  -