Synthesis and solution properties of a temperature-responsive PNIPAM–b-PDMS–b-PNIPAM triblock copolymer

Michael Cook; Sergey K Filippov; Vitaliy V. Khutoryanskiy

doi:10.1007/s00396-017-4084-y

Synthesis and solution properties of a temperature-responsive PNIPAM–b-PDMS–b-PNIPAM triblock copolymer

Michael Cook, Sergey K Filippov, Vitaliy V. Khutoryanskiy

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

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Abstract

In this paper, we report the synthesis and self-assembly of a novel thermoresponsive PNIPAM60–b-PDMS70–b-PNIPAM60 triblock copolymer in aqueous solution. The copolymer used a commercially available precursor modified with an atom transfer radical polymerization (ATRP) initiator to produce an ABA triblock copolymer via ATRP. Small-angle neutron scattering (SANS) was used to shed light on the structures of nanoparticles formed in aqueous solutions of this copolymer at two temperatures, 25 and 40 °C. The poly(dimethylsiloxane) block is very hydrophobic and poly(N-isopropylacrylamide) (PNIPAM) is thermoresponsive. SANS data at 25 °C indicates that the solutions of PNIPAM–b-PDMS–b-PNIPAM copolymers form well-defined aggregates with presumably core–shell structures below cloud point temperature. The scattering curves originating from nanoparticles formed at 40 °C in 100% D2O or 100% H2O were successfully fitted with the Beaucage model describing aggregates with hierarchical structure.

Original language	English
Pages (from-to)	1351-1358
Number of pages	9
Journal	Colloid and Polymer Science
Volume	295
Issue number	8
Early online date	5 Apr 2017
DOIs	https://doi.org/10.1007/s00396-017-4084-y
Publication status	Published - 31 Aug 2017

Keywords

thermoresponsive
PNIPAM
SANS
Polymerization
Atom transfer radical polymerization (ATRP)
self-assembly

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10.1007/s00396-017-4084-yLicence: Other

PNIPAM_PDMS_PNIPAM_final_revised_MTC2
This document is the Accepted Manuscript version of the following article: Michael T. Cook, Sergey K. Filippov, and Vitaliy V. Khutoryanskiy, Synthesis and solution properties of a temperature-responsive PNIPAM–b-PDMS–b-PNIPAM triblock copolymer', Colloid and Polymer Science, (2017). Under embargo. Embargo end date: 5 April 2018. The version of record is available online at doi: 10.1007/s00396-017-4084-y. © Springer-Verlag Berlin Heidelberg 2017
Accepted author manuscript, 1.3 MBLicence: Other

Cite this

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title = "Synthesis and solution properties of a temperature-responsive PNIPAM–b-PDMS–b-PNIPAM triblock copolymer",

abstract = "In this paper, we report the synthesis and self-assembly of a novel thermoresponsive PNIPAM60–b-PDMS70–b-PNIPAM60 triblock copolymer in aqueous solution. The copolymer used a commercially available precursor modified with an atom transfer radical polymerization (ATRP) initiator to produce an ABA triblock copolymer via ATRP. Small-angle neutron scattering (SANS) was used to shed light on the structures of nanoparticles formed in aqueous solutions of this copolymer at two temperatures, 25 and 40 °C. The poly(dimethylsiloxane) block is very hydrophobic and poly(N-isopropylacrylamide) (PNIPAM) is thermoresponsive. SANS data at 25 °C indicates that the solutions of PNIPAM–b-PDMS–b-PNIPAM copolymers form well-defined aggregates with presumably core–shell structures below cloud point temperature. The scattering curves originating from nanoparticles formed at 40 °C in 100% D2O or 100% H2O were successfully fitted with the Beaucage model describing aggregates with hierarchical structure.",

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N1 - This document is the Accepted Manuscript version of the following article: Michael T. Cook, Sergey K. Filippov, and Vitaliy V. Khutoryanskiy, Synthesis and solution properties of a temperature-responsive PNIPAM–b-PDMS–b-PNIPAM triblock copolymer', Colloid and Polymer Science, (2017). Under embargo. Embargo end date: 5 April 2018. The version of record is available online at doi: 10.1007/s00396-017-4084-y. © Springer-Verlag Berlin Heidelberg 2017

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N2 - In this paper, we report the synthesis and self-assembly of a novel thermoresponsive PNIPAM60–b-PDMS70–b-PNIPAM60 triblock copolymer in aqueous solution. The copolymer used a commercially available precursor modified with an atom transfer radical polymerization (ATRP) initiator to produce an ABA triblock copolymer via ATRP. Small-angle neutron scattering (SANS) was used to shed light on the structures of nanoparticles formed in aqueous solutions of this copolymer at two temperatures, 25 and 40 °C. The poly(dimethylsiloxane) block is very hydrophobic and poly(N-isopropylacrylamide) (PNIPAM) is thermoresponsive. SANS data at 25 °C indicates that the solutions of PNIPAM–b-PDMS–b-PNIPAM copolymers form well-defined aggregates with presumably core–shell structures below cloud point temperature. The scattering curves originating from nanoparticles formed at 40 °C in 100% D2O or 100% H2O were successfully fitted with the Beaucage model describing aggregates with hierarchical structure.

AB - In this paper, we report the synthesis and self-assembly of a novel thermoresponsive PNIPAM60–b-PDMS70–b-PNIPAM60 triblock copolymer in aqueous solution. The copolymer used a commercially available precursor modified with an atom transfer radical polymerization (ATRP) initiator to produce an ABA triblock copolymer via ATRP. Small-angle neutron scattering (SANS) was used to shed light on the structures of nanoparticles formed in aqueous solutions of this copolymer at two temperatures, 25 and 40 °C. The poly(dimethylsiloxane) block is very hydrophobic and poly(N-isopropylacrylamide) (PNIPAM) is thermoresponsive. SANS data at 25 °C indicates that the solutions of PNIPAM–b-PDMS–b-PNIPAM copolymers form well-defined aggregates with presumably core–shell structures below cloud point temperature. The scattering curves originating from nanoparticles formed at 40 °C in 100% D2O or 100% H2O were successfully fitted with the Beaucage model describing aggregates with hierarchical structure.

KW - thermoresponsive

KW - PNIPAM

KW - SANS

KW - Polymerization

KW - Atom transfer radical polymerization (ATRP)

KW - self-assembly

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DO - 10.1007/s00396-017-4084-y

M3 - Article

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EP - 1358

JO - Colloid and Polymer Science

JF - Colloid and Polymer Science

IS - 8

ER -

Synthesis and solution properties of a temperature-responsive PNIPAM–b-PDMS–b-PNIPAM triblock copolymer

Abstract

Keywords

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