Covalent derivatization of boron nitride nanotubes with peroxides and their application in polycarbonate composites

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DOIResolve DOI: http://doi.org/10.1039/C7NJ00193B
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TypeArticle
Journal titleNew Journal of Chemistry
ISSN1144-0546
1369-9261
Volume41
Issue15
AbstractThe novel derivatization of boron nitride nanotubes (BNNTs) with two organic peroxides (lauroyl peroxide and dicumyl peroxide) is presented. The functionalized-BNNTs (f-BNNTs) were characterized by FTIR, 1H NMR, TGA, and SEM. These thermally labile peroxides can decompose to generate an alkoxyl radical, or an alkyl radical (with the loss of CO2), which then acts as a Lewis base to attack the electron-deficient boron sites of BNNTs. This results in the covalent formation of R-O-BNNT or R-BNNT bonds. Thin films (15 to 35 μm thickness) of 0.5 to 1.0 wt% lauryl-BNNT/polycarbonate and 1 wt% BNNT-OH/polycarboante composites were fabricated, and their transparency was demonstrated. Semi-transparent, hot-pressed disks (200 μm thickness) of 1.0 wt% cumyloxy-BNNT/polycarbonate and 1.0 wt% lauryl-BNNT/polycarbonate composites were also fabricated and mechanically tested. The Young's modulus and the maximum tensile stress were increased by 12% and 8%, respectively, compared to the corresponding properties of BNNT-free polycarbonate samples.
Publication date
PublisherRoyal Society of Chemistry
LanguageEnglish
AffiliationSecurity and Disruptive Technologies; Aerospace; National Research Council Canada
Peer reviewedYes
NPARC number23002250
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Record identifier2f28cbaf-1e15-4d5b-8a60-a95dedab45c2
Record created2017-09-14
Record modified2017-09-14
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