Synthesis of Poly(methacrylic acid)-<i>block</i>-Polystyrene Diblock Copolymers at High Solid Contents via RAFT Emulsion Polymerization

The combination of polymerization–induced self-assembly (PISA) and reversible–addition fragmentation chain transfer (RAFT) emulsion polymerization offers a powerful technique to synthesize diblock copolymers and polymeric nanoparticles in a controlled manner. The RAFT emulsion diblock copolymerizati...

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Autores principales:	Iklima Oral, Larissa Grossmann, Elena Fedorenko, Jana Struck, Volker Abetz
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	reversible-addition-fragmentation chain transfer high solid content polymerization-induced self-assembly emulsion polymerization polystyrene poly(methacrylic acid) Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/b4abb8043f784f76940ba1fe8f6f431f
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spelling	oai:doaj.org-article:b4abb8043f784f76940ba1fe8f6f431f2021-11-11T18:43:38ZSynthesis of Poly(methacrylic acid)-<i>block</i>-Polystyrene Diblock Copolymers at High Solid Contents via RAFT Emulsion Polymerization10.3390/polym132136752073-4360https://doaj.org/article/b4abb8043f784f76940ba1fe8f6f431f2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3675https://doaj.org/toc/2073-4360The combination of polymerization–induced self-assembly (PISA) and reversible–addition fragmentation chain transfer (RAFT) emulsion polymerization offers a powerful technique to synthesize diblock copolymers and polymeric nanoparticles in a controlled manner. The RAFT emulsion diblock copolymerization of styrene and methacrylic acid (MAA) by using a trithiocarbonate as surfactant and RAFT agent was investigated. The Z-group of the RAFT agent was modified with a propyl-, butyl- and dodecyl- sidechain, increasing the hydrophobicity of the RAFT agent to offer well-controlled polymerization of poly(methacrylic acid)-<i>block</i>-polystyrene (PMAA-<i>b</i>-PS) diblock copolymers at high solid contents between 30–50 wt% in water. The kinetic data of the PMAA homopolymerization with the three different RAFT agents for various solvents was investigated as well as the RAFT emulsion polymerization of the diblock copolymers in pure water. While the polymerization of PMAA-<i>b</i>-PS with a propyl terminus as a Z-group suffered from slow polymerization rates at solid contents above 30 wt%, the polymerization with a dodecyl sidechain as a Z-group led to full conversion within 2 h, narrow molar mass distributions and all that at a remarkable solid content of up to 50 wt%.Iklima OralLarissa GrossmannElena FedorenkoJana StruckVolker AbetzMDPI AGarticlereversible-addition-fragmentation chain transferhigh solid contentpolymerization-induced self-assemblyemulsion polymerizationpolystyrenepoly(methacrylic acid)Organic chemistryQD241-441ENPolymers, Vol 13, Iss 3675, p 3675 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	reversible-addition-fragmentation chain transfer high solid content polymerization-induced self-assembly emulsion polymerization polystyrene poly(methacrylic acid) Organic chemistry QD241-441
spellingShingle	reversible-addition-fragmentation chain transfer high solid content polymerization-induced self-assembly emulsion polymerization polystyrene poly(methacrylic acid) Organic chemistry QD241-441 Iklima Oral Larissa Grossmann Elena Fedorenko Jana Struck Volker Abetz Synthesis of Poly(methacrylic acid)-<i>block</i>-Polystyrene Diblock Copolymers at High Solid Contents via RAFT Emulsion Polymerization
description	The combination of polymerization–induced self-assembly (PISA) and reversible–addition fragmentation chain transfer (RAFT) emulsion polymerization offers a powerful technique to synthesize diblock copolymers and polymeric nanoparticles in a controlled manner. The RAFT emulsion diblock copolymerization of styrene and methacrylic acid (MAA) by using a trithiocarbonate as surfactant and RAFT agent was investigated. The Z-group of the RAFT agent was modified with a propyl-, butyl- and dodecyl- sidechain, increasing the hydrophobicity of the RAFT agent to offer well-controlled polymerization of poly(methacrylic acid)-<i>block</i>-polystyrene (PMAA-<i>b</i>-PS) diblock copolymers at high solid contents between 30–50 wt% in water. The kinetic data of the PMAA homopolymerization with the three different RAFT agents for various solvents was investigated as well as the RAFT emulsion polymerization of the diblock copolymers in pure water. While the polymerization of PMAA-<i>b</i>-PS with a propyl terminus as a Z-group suffered from slow polymerization rates at solid contents above 30 wt%, the polymerization with a dodecyl sidechain as a Z-group led to full conversion within 2 h, narrow molar mass distributions and all that at a remarkable solid content of up to 50 wt%.
format	article
author	Iklima Oral Larissa Grossmann Elena Fedorenko Jana Struck Volker Abetz
author_facet	Iklima Oral Larissa Grossmann Elena Fedorenko Jana Struck Volker Abetz
author_sort	Iklima Oral
title	Synthesis of Poly(methacrylic acid)-<i>block</i>-Polystyrene Diblock Copolymers at High Solid Contents via RAFT Emulsion Polymerization
title_short	Synthesis of Poly(methacrylic acid)-<i>block</i>-Polystyrene Diblock Copolymers at High Solid Contents via RAFT Emulsion Polymerization
title_full	Synthesis of Poly(methacrylic acid)-<i>block</i>-Polystyrene Diblock Copolymers at High Solid Contents via RAFT Emulsion Polymerization
title_fullStr	Synthesis of Poly(methacrylic acid)-<i>block</i>-Polystyrene Diblock Copolymers at High Solid Contents via RAFT Emulsion Polymerization
title_full_unstemmed	Synthesis of Poly(methacrylic acid)-<i>block</i>-Polystyrene Diblock Copolymers at High Solid Contents via RAFT Emulsion Polymerization
title_sort	synthesis of poly(methacrylic acid)-<i>block</i>-polystyrene diblock copolymers at high solid contents via raft emulsion polymerization
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b4abb8043f784f76940ba1fe8f6f431f
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Synthesis of Poly(methacrylic acid)-<i>block</i>-Polystyrene Diblock Copolymers at High Solid Contents via RAFT Emulsion Polymerization

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