Imperial College London
Alternate

Professor Theoni K. Georgiou

Faculty of Engineering, Department of Materials

Professor in Polymer Chemistry
 
 
 
//

Contact

 

t.georgiou Website

 
 
//

Location

 

RSM 1.05Royal School of MinesSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Li:2021:10.1002/pol.20200720,
author = {Li, Q and Constantinou, A and Georgiou, T},
doi = {10.1002/pol.20200720},
journal = {Journal of Applied Polymer Science},
pages = {230--239},
title = {A library of thermoresponsive PEG-based methacrylate homopolymers: How do the molar mass and number of ethylene glycol groups affect the cloud point?},
url = {http://dx.doi.org/10.1002/pol.20200720},
volume = {59},
year = {2021}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In this study, a novel library of thermoresponsive homopolymers based on poly (ethylene glycol) (EG) (m)ethyl ether methacrylate monomers is presented. Twentyseven EG based homopolymers were synthesized and three parameters, the molar mass (MM), the number of the ethylene glycol groups in the monomer, and the chemistry of the functional side group were varied to investigate how these affect their thermoresponsive behavior. The targeted MMs of these polymers are varied from 2560, 5000, 8200 to 12,000 g mol−1. Seven PEGbased monomers were investigated: ethylene glycol methyl ether methacrylate (MEGMA), ethylene glycol ethyl ether methacrylate (EEGMA), di(ethylene glycol) methyl ether methacrylate (DEGMA), tri(ethylene glycol) methyl ether methacrylate (TEGMA), tri(ethylene glycol) ethyl ether methacrylate (TEGEMA), penta(ethylene glycol) methyl ether methacrylate (PEGMA), nona(ethylene glycol) methyl ether methacrylate (NEGMA). Homopolymers of 2(dimethylamino) ethyl methacrylate (DMAEMA) were also synthesized for comparison. The cloud points of these homopolymers were tested in different solvents and it was observed that it decreases as the number of EG group was decreased or the MM increased. Interestingly, the end functional group (methoxy or ethoxy) of the side group has an effect as well and is even more dominant than the number of EG groups.
AU  - Li,Q
AU  - Constantinou,A
AU  - Georgiou,T
DO  - 10.1002/pol.20200720
EP  - 239
PY  - 2021///
SN  - 0021-8995
SP  - 230
TI  - A library of thermoresponsive PEG-based methacrylate homopolymers: How do the molar mass and number of ethylene glycol groups affect the cloud point?
T2  - Journal of Applied Polymer Science
UR  - http://dx.doi.org/10.1002/pol.20200720
UR  - http://hdl.handle.net/10044/1/86257
VL  - 59
ER  -
Download