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Issue 25, 2017
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On-demand curing of polydimethylsiloxane (PDMS) using the photothermal effect of gold nanoparticles

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Abstract

The photothermal effect of gold nanoparticles (AuNPs) produces extremely localized heat that can be harnessed to drive large scale chemical reactions by simultaneously generating many individual reactions on the nanoscale. We use the photothermal effect to enhance the curing rate of polydimethylsiloxane (PDMS) by a factor of 4.9 × 109. Photothermal curing occurs via crosslinking reactions between vinyl and Si–H groups of the pre-polymer, and the course of the reaction was followed by monitoring the disappearance of infrared bands associated with these functional groups. Using mass spectroscopy, we verify that the major polymer m/z peaks are identical for both traditionally and photothermally cured polymers, indicating that the photothermal effect of AuNPs is an effective way in which to supply on-demand curing of PDMS.

Graphical abstract: On-demand curing of polydimethylsiloxane (PDMS) using the photothermal effect of gold nanoparticles

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Publication details

The article was received on 27 Feb 2017, accepted on 08 May 2017 and first published on 17 May 2017


Article type: Communication
DOI: 10.1039/C7NR01423F
Citation: Nanoscale, 2017,9, 8555-8559
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    On-demand curing of polydimethylsiloxane (PDMS) using the photothermal effect of gold nanoparticles

    R. Joseph Fortenbaugh and B. J. Lear, Nanoscale, 2017, 9, 8555
    DOI: 10.1039/C7NR01423F

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