Magnetic hydrogels from alkyne/cobalt carbonyl-functionalized ABA triblock copolymers

Jiang, Bingyin; Hom, Wendy L.; Chen, Xianyin; Yu, Pengqing; Pavelka, Laura C.; Kisslinger, Kim; Parise, John B.; Bhatia, Surita R.; Grubbs, Robert B.

doi:10.1021/jacs.6b01271

Title: Magnetic hydrogels from alkyne/cobalt carbonyl-functionalized ABA triblock copolymers

Journal Article · Wed Mar 09 00:00:00 EST 2016 · Journal of the American Chemical Society

DOI:https://doi.org/10.1021/jacs.6b01271· OSTI ID:1328374

Jiang, Bingyin ^[1]; Hom, Wendy L. ^[1]; Chen, Xianyin ^[1]; Yu, Pengqing ^[1]; Pavelka, Laura C. ^[1]; Kisslinger, Kim ^[2]; Parise, John B. ^[1]; Bhatia, Surita R. ^[1]; Grubbs, Robert B. ^[1]

Stony Brook Univ., Stony Brook, NY (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)

A series of alkyne-functionalized poly(4-(phenylethynyl)styrene)-block-poly(ethylene oxide)-block-poly(4-(phenylethynyl)styrene) (PPES-b-PEO-b-PPES) ABA triblock copolymers was synthesized by reversible addition–fragmentation chain transfer (RAFT) polymerization. PES_n[Co₂(CO)₆]_x-EO₈₀₀-PES_n[Co₂(CO)₆]_x ABA triblock copolymer/cobalt adducts (10–67 wt % PEO) were subsequently prepared by reaction of the alkyne-functionalized PPES block with Co₂(CO)₈ and their phase behavior was studied by TEM. Heating triblock copolymer/cobalt carbonyl adducts at 120 °C led to cross-linking of the PPES/Co domains and the formation of magnetic cobalt nanoparticles within the PPES/Co domains. Magnetic hydrogels could be prepared by swelling the PEO domains of the cross-linked materials with water. Furthermore, swelling tests, rheological studies and actuation tests demonstrated that the water capacity and modulus of the hydrogels were dependent upon the composition of the block copolymer precursors.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC00112704

OSTI ID:: 1328374

Report Number(s):: BNL-112681-2016-JA; KC0403020

Journal Information:: Journal of the American Chemical Society, Vol. 138, Issue 13; ISSN 0002-7863

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 35 works

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A New Approach to the Theory of Relaxing Polymeric Media Green, M. S.; Tobolsky, A. V. The Journal of Chemical Physics, Vol. 14, Issue 2 https://doi.org/10.1063/1.1724109	journal	February 1946
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A soft hydrogel reactor for cobalt nanoparticle preparation and use in the reduction of nitrophenols Sahiner, Nurettin; Ozay, Hava; Ozay, Ozgur Applied Catalysis B: Environmental, Vol. 101, Issue 1-2 https://doi.org/10.1016/j.apcatb.2010.09.022	journal	November 2010

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Polyphilicity—An Extension of the Concept of Amphiphilicity in Polymers Heinz, Daniel; Amado, Elkin; Kressler, Jörg Polymers, Vol. 10, Issue 9 https://doi.org/10.3390/polym10090960	journal	August 2018
A molecular approach to magnetic metallic nanostructures from metallopolymer precursors Dong, Qingchen; Meng, Zhengong; Ho, Cheuk-Lam Chemical Society Reviews, Vol. 47, Issue 13 https://doi.org/10.1039/c7cs00599g	journal	January 2018
Recent progress of magnetic nanomaterials from cobalt-containing organometallic polymer precursors Ruan, Zhijun; Li, Zhen Polymer Chemistry, Vol. 11, Issue 4 https://doi.org/10.1039/c9py01517e	journal	January 2020

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