Autoxidized Oleic Acid Bifunctional Macro Peroxide Initiators for Free Radical and Condensation Polymerization. Synthesis and Characterization of Multiblock Copolymers

Autoxidation of unsaturated fatty acids gives fatty acid macroperoxide initiators containing two functionalities which can lead to free radical and condensation polymerizations in a single pot. The oleic acid macroperoxide initiator obtained by ecofriendly autoxidation (Pole4m) was used in both the...

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Bibliographic Details
Published in:Journal of polymers and the environment 2019-11, Vol.27 (11), p.2562-2576
Main Authors: Hazer, Baki, Ayyıldız, Elif, Eren, Melike, Seçilmiş Canbay, Hale, Ashby, Richard D.
Format: Article
Language:English
Subjects:
AMINES
Autoxidation
Chemical synthesis
Chemistry
Chemistry and Materials Science
Condensates
Condensation
Condensation polymerization
COPOLYMERS
Environmental Chemistry
Environmental Engineering/Biotechnology
Fatty acids
Fracture surfaces
Free radical polymerization
Free radicals
Glass transition temperature
Graft copolymers
Industrial Chemistry/Chemical Engineering
Initiators
MATERIALS SCIENCE
Micelles
MORPHOLOGY
NMR SPECTROMETERS
OLEIC ACID
Original Paper
OXIDATION
Peroxide
PEROXIDES
PLASTICIZERS
Polyethylene glycol
POLYETHYLENE GLYCOLS
Polymer Sciences
POLYMERIZATION
POLYSTYRENE
Polystyrene resins
RADICALS
Structural analysis
STYRENE
Styrenes
SYNTHESIS
THERMAL ANALYSIS
Transition temperatures
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Summary:Autoxidation of unsaturated fatty acids gives fatty acid macroperoxide initiators containing two functionalities which can lead to free radical and condensation polymerizations in a single pot. The oleic acid macroperoxide initiator obtained by ecofriendly autoxidation (Pole4m) was used in both the free radical polymerization of styrene and the condensation polymerization with amine-terminated polyethylene glycol (PEGNH2) to obtain triblock branched graft copolymers. The narrow molar masses of the poly oleic acid-g-styrene (PoleS) and poly oleic acid-g-styrene-g-PEG (PoSG) graft copolymers were successfully obtained. The inclusion of oleic acid decreased the glass transition temperature of the polystyrene segment because of the plasticizing effect of oleic acid. In addition, a mechanical property of the copolymer was improved when compared with the pure PS. Structural characterization, morphology of the fracture surface, micelle formation, thermal analysis and molar masses of the obtained products were also evaluated.
ISSN:1566-2543
1572-8919
DOI:10.1007/s10924-019-01536-6