Photothermal Nanoparticle Initiation Enables Radical Polymerization and Yields Unique, Uniform Microfibers with Broad Spectrum Light. Steinhardt, R. C., Steeves, T., Wallace, B. M., Moser, B., Fishman, undefined, & Esser-Kahn, A. P ACS Applied Materials & Interfaces, October, 2017. ![Photothermal Nanoparticle Initiation Enables Radical Polymerization and Yields Unique, Uniform Microfibers with Broad Spectrum Light [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Photothermal processes are utilized across a variety of fields, from separations to medicine, and are an area of active research. Herein, the action of a solar simulator upon carbon black nanoparticles is shown to result in photothermally-initiated chain-growth polymerization of methyl acrylate, butyl acrylate, and methyl methacrylate initiated by benzoyl peroxide. Using methyl acrylate as the model system, products from this reaction are shown to be apparently indistinguishable on the molecular level, but result in unique microstructures relative to the thermal controls. The relative contribution of bands of the UV/visible spectrum to the polymerization initiation show that red/infrared wavelengths are most important for the initiation to occur. Kinetic analysis of the initiator homolysis indicate that the apparent reaction rate is accelerated in the photothermal condition.
@article{steinhardt_photothermal_2017,
title = {Photothermal {Nanoparticle} {Initiation} {Enables} {Radical} {Polymerization} and {Yields} {Unique}, {Uniform} {Microfibers} with {Broad} {Spectrum} {Light}},
issn = {1944-8244},
url = {http://dx.doi.org/10.1021/acsami.7b12230},
doi = {10.1021/acsami.7b12230},
abstract = {Photothermal processes are utilized across a variety of fields, from separations to medicine, and are an area of active research. Herein, the action of a solar simulator upon carbon black nanoparticles is shown to result in photothermally-initiated chain-growth polymerization of methyl acrylate, butyl acrylate, and methyl methacrylate initiated by benzoyl peroxide. Using methyl acrylate as the model system, products from this reaction are shown to be apparently indistinguishable on the molecular level, but result in unique microstructures relative to the thermal controls. The relative contribution of bands of the UV/visible spectrum to the polymerization initiation show that red/infrared wavelengths are most important for the initiation to occur. Kinetic analysis of the initiator homolysis indicate that the apparent reaction rate is accelerated in the photothermal condition.},
urldate = {2017-10-23TZ},
journal = {ACS Applied Materials \& Interfaces},
author = {Steinhardt, Rachel C. and Steeves, Timothy and Wallace, Brooke Marjorie and Moser, Brittany and Fishman, , Dmitry A and Esser-Kahn, Aaron P},
month = oct,
year = {2017}
}
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