NDLI: Tuning the upper critical solution temperature behavior of poly(methyl methacrylate) in aqueous ethanol by modification of an activated ester comonomer

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Back cover

Polymer Chemistry Vol - 3 Issue - 5

Polymer Chemistry Vol - 3 Issue - 4

Polymer Chemistry Vol - 3 Issue - 3

Polymer Chemistry Vol - 3 Issue - 2

Polymer Chemistry Vol -2

Polymer Chemistry Vol -1

Tuning the upper critical solution temperature behavior of poly(methyl methacrylate) in aqueous ethanol by modification of an activated ester comonomer

Content Provider	Royal Society of Chemistry (RSC)
Author	Schattling, Philipp Hoogenboom, Richard Zhang, Qilu Theato, Patrick
Copyright Year	2012
Abstract	A statistical copolymer of methyl methacrylate (MMA) and pentafluorophenyl methacrylate (PFPMA, 6 mol%) exhibits upper critical solution temperature (UCST) behavior in aqueous ethanol solutions tunable by post-polymerization modification with different amines. The phase transition behavior of the obtained copolymers in aqueous ethanol was evaluated in detail. As expected, all copolymers reveal an upper critical solution temperature with 55 vol% or higher ethanol content. Furthermore, the solubility in aqueous ethanol of the copolymer can be increased by the introduction of hydrophilic moieties. When hydrophobic substituents are introduced a decrease in solubility was observed with low content of ethanol and an increase in solubility when adding more ethanol. As such, the thermoresponsive behavior of PMMA can be significantly altered by post-modification of 6 mol% of the reactive comonomer units. The hysteresis of the polymer phase transitions between heating and cooling was found to be strongly dependent on the polarity of the amine substituent and the ethanol/water ratio. The metastability of the hysteresis is addressed based on isothermal turbidity studies.
Starting Page	1418
Ending Page	1426
Page Count	9
File Format	HTM / HTML PDF
ISSN	17599954
Volume Number	3
Issue Number	6
Journal	Polymer Chemistry
DOI	10.1039/c2py20073b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	MMA Ethanol PFPMA Contour line Polymer Hydrophobe Substituent Para-Methoxy-N-methylamphetamine Comonomer Turbidity Copolymer Upper critical solution temperature Hydrophile Methyl methacrylate Hysteresis Phase transition
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics

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