RAFT polymerization of N-isopropylacrylamide and acrylic acid under γ-irradiation in aqueous media

Pierre Eric Millard; Leonie Barner; Martina H. Stenzel; Thomas P. Davis; Christopher Barner-Kowollik; Axel H.E. Müller

doi:10.1002/marc.200600115

RAFT polymerization of N-isopropylacrylamide and acrylic acid under γ-irradiation in aqueous media

Pierre Eric Millard, Leonie Barner, Martina H. Stenzel, Thomas P. Davis, Christopher Barner-Kowollik, Axel H.E. Müller

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

92 Citations (Scopus)

Abstract

The ambient temperature (20°C) reversible addition fragmentation chain transfer (RAFT) polymerization of N-isopropylacrylamide (NIPAAm) and acrylic acid (AA) conducted directly in aqueous media under γinitiation (at dose rates of 30 Gy·h^-1) proceeds in a controlled fashion (typically, M̄_w/M̄_n < 1.2) to near quantitative conversions and up to number-average molecular weights of 2.5 × 10⁵ g·mol^-1 for PNIPAAm and 1.1 × 10⁵ g·mo^-1 for PAA via two water-soluble trithiocarbonate chain transfer agents, i.e., S,S-bis(α,α′- dimethyl-α″-acetic acid)trithiocarbonate (TRITT) and 3-benzylsulfanyltbiocar-bonylsulfanyl propionic acid (BPATT). The generated polymers are successfully chain extended, which suggests that the RAFT agents are stable throughout the polymerization process so that complex and well-defined architectures can be obtained.

Original language	English
Pages (from-to)	821-828
Number of pages	8
Journal	Macromolecular Rapid Communications
Volume	27
Issue number	11
DOIs	https://doi.org/10.1002/marc.200600115
Publication status	Published - 2 Jun 2006
Externally published	Yes

Keywords

γ-radiation
Acrylic acid
Kinetics (polym.)
N-isopropylacrylamide
Reversible addition fragmentation chain transfer (RAFT)
Smart polymers

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10.1002/marc.200600115

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title = "RAFT polymerization of N-isopropylacrylamide and acrylic acid under γ-irradiation in aqueous media",

abstract = "The ambient temperature (20°C) reversible addition fragmentation chain transfer (RAFT) polymerization of N-isopropylacrylamide (NIPAAm) and acrylic acid (AA) conducted directly in aqueous media under γinitiation (at dose rates of 30 Gy·h-1) proceeds in a controlled fashion (typically, {\=M}w/{\=M}n < 1.2) to near quantitative conversions and up to number-average molecular weights of 2.5 × 105 g·mol-1 for PNIPAAm and 1.1 × 105 g·mo-1 for PAA via two water-soluble trithiocarbonate chain transfer agents, i.e., S,S-bis(α,α′- dimethyl-α″-acetic acid)trithiocarbonate (TRITT) and 3-benzylsulfanyltbiocar-bonylsulfanyl propionic acid (BPATT). The generated polymers are successfully chain extended, which suggests that the RAFT agents are stable throughout the polymerization process so that complex and well-defined architectures can be obtained.",

keywords = "γ-radiation, Acrylic acid, Kinetics (polym.), N-isopropylacrylamide, Reversible addition fragmentation chain transfer (RAFT), Smart polymers",

author = "Millard, {Pierre Eric} and Leonie Barner and Stenzel, {Martina H.} and Davis, {Thomas P.} and Christopher Barner-Kowollik and M{\"u}ller, {Axel H.E.}",

year = "2006",

month = jun,

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doi = "10.1002/marc.200600115",

language = "English",

volume = "27",

pages = "821--828",

journal = "Macromolecular Rapid Communications",

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T1 - RAFT polymerization of N-isopropylacrylamide and acrylic acid under γ-irradiation in aqueous media

AU - Millard, Pierre Eric

AU - Barner, Leonie

AU - Stenzel, Martina H.

AU - Davis, Thomas P.

AU - Barner-Kowollik, Christopher

AU - Müller, Axel H.E.

PY - 2006/6/2

Y1 - 2006/6/2

N2 - The ambient temperature (20°C) reversible addition fragmentation chain transfer (RAFT) polymerization of N-isopropylacrylamide (NIPAAm) and acrylic acid (AA) conducted directly in aqueous media under γinitiation (at dose rates of 30 Gy·h-1) proceeds in a controlled fashion (typically, M̄w/M̄n < 1.2) to near quantitative conversions and up to number-average molecular weights of 2.5 × 105 g·mol-1 for PNIPAAm and 1.1 × 105 g·mo-1 for PAA via two water-soluble trithiocarbonate chain transfer agents, i.e., S,S-bis(α,α′- dimethyl-α″-acetic acid)trithiocarbonate (TRITT) and 3-benzylsulfanyltbiocar-bonylsulfanyl propionic acid (BPATT). The generated polymers are successfully chain extended, which suggests that the RAFT agents are stable throughout the polymerization process so that complex and well-defined architectures can be obtained.

AB - The ambient temperature (20°C) reversible addition fragmentation chain transfer (RAFT) polymerization of N-isopropylacrylamide (NIPAAm) and acrylic acid (AA) conducted directly in aqueous media under γinitiation (at dose rates of 30 Gy·h-1) proceeds in a controlled fashion (typically, M̄w/M̄n < 1.2) to near quantitative conversions and up to number-average molecular weights of 2.5 × 105 g·mol-1 for PNIPAAm and 1.1 × 105 g·mo-1 for PAA via two water-soluble trithiocarbonate chain transfer agents, i.e., S,S-bis(α,α′- dimethyl-α″-acetic acid)trithiocarbonate (TRITT) and 3-benzylsulfanyltbiocar-bonylsulfanyl propionic acid (BPATT). The generated polymers are successfully chain extended, which suggests that the RAFT agents are stable throughout the polymerization process so that complex and well-defined architectures can be obtained.

KW - γ-radiation

KW - Acrylic acid

KW - Kinetics (polym.)

KW - N-isopropylacrylamide

KW - Reversible addition fragmentation chain transfer (RAFT)

KW - Smart polymers

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U2 - 10.1002/marc.200600115

DO - 10.1002/marc.200600115

M3 - Article

AN - SCOPUS:33745318000

VL - 27

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JO - Macromolecular Rapid Communications

JF - Macromolecular Rapid Communications

SN - 1022-1336

IS - 11

ER -

RAFT polymerization of N-isopropylacrylamide and acrylic acid under γ-irradiation in aqueous media

Abstract

Keywords

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