Synthesis and thermal properties of triblock copolymers of methyl methacrylate using combination of anionic and controlled radical polymerization: Poly(methyl methacrylate) center block bearing different microstructures

ABA and/or ABC type triblock copolymers were synthesized by living anionic and controlled radical polymerization in which poly(methyl methacrylate) was used as central block. The structural composition of these block copolymers were determined by H NMR. The block length/molecular weight and microstr...

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Published in:e-Polymers 2012-12, Vol.12 (1), p.788-802
Main Authors: Song, Zhengji, Pelletier, Carole, Qi, Yinghua, Ahmed, Jasim, Varshney, Sunil K., Jafar Mazumder, M. A.
Format: Article
Language:English
Subjects:
Block copolymers
Chemical industry
Chemical synthesis
Isotacticity
Materials science
Microstructure
Molecular weight
NMR
Nuclear magnetic resonance
Polymerization
Polymers
Polymethyl methacrylate
Polystyrene resins
Rheological properties
Syndiotacticity
Thermodynamic properties
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container_end_page 802
container_issue 1
container_start_page 788
container_title e-Polymers
container_volume 12
creator Song, Zhengji
Pelletier, Carole
Qi, Yinghua
Ahmed, Jasim
Varshney, Sunil K.
Jafar Mazumder, M. A.
description ABA and/or ABC type triblock copolymers were synthesized by living anionic and controlled radical polymerization in which poly(methyl methacrylate) was used as central block. The structural composition of these block copolymers were determined by H NMR. The block length/molecular weight and microstructure of these polymers were measured by SEC. The microstructure of resultant central alkyl methacrylate block can be tailored from highly syndiotactic to highly isotactic structure by varying the solvent and/or initiator. The thermal and rheological properties of center poly(methyl methacrylate) block and poly(styrene - methyl methacrylate- - styrene) tri block copolymers were studied in detail.
doi_str_mv 10.1515/epoly.2012.12.1.788
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1618-7229
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source Walter De Gruyter: Open Access Journals
subjects Block copolymers
Chemical industry
Chemical synthesis
Isotacticity
Materials science
Microstructure
Molecular weight
NMR
Nuclear magnetic resonance
Polymerization
Polymers
Polymethyl methacrylate
Polystyrene resins
Rheological properties
Syndiotacticity
Thermodynamic properties
title Synthesis and thermal properties of triblock copolymers of methyl methacrylate using combination of anionic and controlled radical polymerization: Poly(methyl methacrylate) center block bearing different microstructures
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