Water-soluble, thermoresponsive, hyperbranched copolymers based on PEG-methacrylates: Synthesis, characterization, and LCST behavior

Mario Luzon; Cyrille Boyer; Carmen Peinado; Teresa Corrales; Michael Raymond Whittaker; Lei Tao; Thomas Paul Davis

doi:10.1002/pola.24027

Water-soluble, thermoresponsive, hyperbranched copolymers based on PEG-methacrylates: Synthesis, characterization, and LCST behavior

Mario Luzon, Cyrille Boyer, Carmen Peinado, Teresa Corrales, Michael Raymond Whittaker, Lei Tao, Thomas Paul Davis

Research output: Contribution to journal › Article › Research › peer-review

161 Citations (Scopus)

Abstract

A series of water-soluble thermoresponsive hyperbranched copoly(oligoethylene glycol)s were synthesized by copolymerization of di(ethylene glycol) methacrylate (DEGMA) and oligo(ethyiene glycol) methacrylate (OEG-MA, Mw = 475 g/mol), with ethylene glycol dimethacrylate (EGD-MA) used as the crosslinker, via reversible addition fragmentation chain transfer polymerization. Polymers were characterized by size exclusion chromatography and nuclear magnetic resonance analyses. According to the monomer composition, that is, the ratio of OEG-MA: DEG-MA: EGD-MA, the lower critical solution temperature (LCST) could be tuned from 25 ?C to 90 ?C. The thermoresponsive properties of these hyperbranched copolymers were studied carefully and compared with their linear analogs. It was found that molecular architecture influences thermoresponsive behavior, with a decrease of around 5-10 ?C in the LCST of the hyperbranched polymers compared with the LCST of linear chains.

Original language	English
Pages (from-to)	2782 - 2792
Number of pages	11
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	48
Issue number	13
DOIs	https://doi.org/10.1002/pola.24027
Publication status	Published - 2010
Externally published	Yes

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10.1002/pola.24027

Cite this

@article{3ac0cf9c094f44e9894f2b32980c8eb5,

title = "Water-soluble, thermoresponsive, hyperbranched copolymers based on PEG-methacrylates: Synthesis, characterization, and LCST behavior",

abstract = "A series of water-soluble thermoresponsive hyperbranched copoly(oligoethylene glycol)s were synthesized by copolymerization of di(ethylene glycol) methacrylate (DEGMA) and oligo(ethyiene glycol) methacrylate (OEG-MA, Mw = 475 g/mol), with ethylene glycol dimethacrylate (EGD-MA) used as the crosslinker, via reversible addition fragmentation chain transfer polymerization. Polymers were characterized by size exclusion chromatography and nuclear magnetic resonance analyses. According to the monomer composition, that is, the ratio of OEG-MA: DEG-MA: EGD-MA, the lower critical solution temperature (LCST) could be tuned from 25 ?C to 90 ?C. The thermoresponsive properties of these hyperbranched copolymers were studied carefully and compared with their linear analogs. It was found that molecular architecture influences thermoresponsive behavior, with a decrease of around 5-10 ?C in the LCST of the hyperbranched polymers compared with the LCST of linear chains.",

author = "Mario Luzon and Cyrille Boyer and Carmen Peinado and Teresa Corrales and Whittaker, {Michael Raymond} and Lei Tao and Davis, {Thomas Paul}",

year = "2010",

doi = "10.1002/pola.24027",

language = "English",

volume = "48",

pages = "2782 -- 2792",

journal = "Journal of Polymer Science, Part A: Polymer Chemistry",

issn = "0887-624X",

publisher = "John Wiley & Sons",

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TY - JOUR

T1 - Water-soluble, thermoresponsive, hyperbranched copolymers based on PEG-methacrylates: Synthesis, characterization, and LCST behavior

AU - Luzon, Mario

AU - Boyer, Cyrille

AU - Peinado, Carmen

AU - Corrales, Teresa

AU - Whittaker, Michael Raymond

AU - Tao, Lei

AU - Davis, Thomas Paul

PY - 2010

Y1 - 2010

N2 - A series of water-soluble thermoresponsive hyperbranched copoly(oligoethylene glycol)s were synthesized by copolymerization of di(ethylene glycol) methacrylate (DEGMA) and oligo(ethyiene glycol) methacrylate (OEG-MA, Mw = 475 g/mol), with ethylene glycol dimethacrylate (EGD-MA) used as the crosslinker, via reversible addition fragmentation chain transfer polymerization. Polymers were characterized by size exclusion chromatography and nuclear magnetic resonance analyses. According to the monomer composition, that is, the ratio of OEG-MA: DEG-MA: EGD-MA, the lower critical solution temperature (LCST) could be tuned from 25 ?C to 90 ?C. The thermoresponsive properties of these hyperbranched copolymers were studied carefully and compared with their linear analogs. It was found that molecular architecture influences thermoresponsive behavior, with a decrease of around 5-10 ?C in the LCST of the hyperbranched polymers compared with the LCST of linear chains.

AB - A series of water-soluble thermoresponsive hyperbranched copoly(oligoethylene glycol)s were synthesized by copolymerization of di(ethylene glycol) methacrylate (DEGMA) and oligo(ethyiene glycol) methacrylate (OEG-MA, Mw = 475 g/mol), with ethylene glycol dimethacrylate (EGD-MA) used as the crosslinker, via reversible addition fragmentation chain transfer polymerization. Polymers were characterized by size exclusion chromatography and nuclear magnetic resonance analyses. According to the monomer composition, that is, the ratio of OEG-MA: DEG-MA: EGD-MA, the lower critical solution temperature (LCST) could be tuned from 25 ?C to 90 ?C. The thermoresponsive properties of these hyperbranched copolymers were studied carefully and compared with their linear analogs. It was found that molecular architecture influences thermoresponsive behavior, with a decrease of around 5-10 ?C in the LCST of the hyperbranched polymers compared with the LCST of linear chains.

U2 - 10.1002/pola.24027

DO - 10.1002/pola.24027

M3 - Article

SN - 0887-624X

VL - 48

SP - 2782

EP - 2792

JO - Journal of Polymer Science, Part A: Polymer Chemistry

JF - Journal of Polymer Science, Part A: Polymer Chemistry

IS - 13

ER -