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Electrically conductive polymer comp...

Rhodes, Susan M.

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Electrically conductive polymer composites.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Electrically conductive polymer composites./
Author:	Rhodes, Susan M.
Description:	282 p.
Notes:	Adviser: Roderic P. Quirk.
Contained By:	Dissertation Abstracts International68-12B.
Subject:	Chemistry, Polymer. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3292812
ISBN:	9780549363071

Electrically conductive polymer composites.
Rhodes, Susan M.

Electrically conductive polymer composites. - 282 p.

Adviser: Roderic P. Quirk.

Thesis (Ph.D.)--The University of Akron, 2007.

Carbon nanofiber composites. Hyperbranched polyol carbon nanofiber (CNF) composites were synthesized by the chemical modification of oxidized CNF with glycidol and boron trifluoride diethyl etherate to improve the dispersion of CNF in polymer matrices. The resulting polyol CNF were characterized by thermogravimetric analysis, infrared spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. Hydroxyl groups were reacted with heptafluorobutyryl chloride to determine the amount of oxidized groups in the sample. The amount of hydroxyl groups increased by 417% for the polyol CNF compared to the oxidized CNF and an improvement in dispersion was observed.

ISBN: 9780549363071Subjects--Topical Terms:

1018428
Chemistry, Polymer.

Electrically conductive polymer composites.
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005 20110630
008 110630s2007 ||||||||||||||||| ||eng d
020 $a 9780549363071
035 $a (UMI)AAI3292812
035 $a AAI3292812
040 $a UMI $c UMI
100 1 $a Rhodes, Susan M. $3 1280772
245 1 0 $a Electrically conductive polymer composites.
300 $a 282 p.
500 $a Adviser: Roderic P. Quirk.
500 $a Source: Dissertation Abstracts International, Volume: 68-12, Section: B, page: 8058.
502 $a Thesis (Ph.D.)--The University of Akron, 2007.
520 $a Carbon nanofiber composites. Hyperbranched polyol carbon nanofiber (CNF) composites were synthesized by the chemical modification of oxidized CNF with glycidol and boron trifluoride diethyl etherate to improve the dispersion of CNF in polymer matrices. The resulting polyol CNF were characterized by thermogravimetric analysis, infrared spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. Hydroxyl groups were reacted with heptafluorobutyryl chloride to determine the amount of oxidized groups in the sample. The amount of hydroxyl groups increased by 417% for the polyol CNF compared to the oxidized CNF and an improvement in dispersion was observed.
520 $a Silver- and polyaniline-filled epoxy composites. Composites with high electrical conductivity have been formulated from 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexane carboxylate, undoped polyaniline (PANI), silver particles, and a Bronsted acid initiator to yield an order of magnitude decrease in electrical resistivity (10-5 ohm-cm) compared to the non-PANI containing composite (10-4 ohm-cm). Formulations were characterized by scanning electron microscopy, thermogravimetric analysis, solid-state 13C nuclear magnetic resonance spectroscopy and 4-point probe conductivity. It was postulated that an interaction between PANI and the silver particle surfactants resulted in improved connectivity of the silver particles. Formulations using undoped PANI exhibited higher conductivity than doped PANI, due to improved dispersion and latent doping from the Bronsted acid and the acidic silver surfactants.
520 $a Radiation-cured, silver-filled epoxy composites. Silver fillers were investigated to determine the best aspect ratio for ultraviolet (UV) radiation curing. A matrix dependency on the ability to cure a Ag-filled composition was revealed, with Ag-filled acrylate compositions providing higher cure than Ag-filled epoxy compositions. Photo-differential scanning calorimetry measurements provided information relating UV curability and the connectivity of Ag particles in the composites. The addition of PANI reduced the UV curability of these composites.
520 $a Synthesis of silver nanomaterials. Silver nanowire syntheses have been reported, but incorporation of these materials into polymers to reduce percolation thresholds has not been reported. The potential to use silver nanowires as conductive fillers in polymer composites was explored. Despite numerous attempts, high quantity synthesis of silver nanowires is still an unachieved target. Additional research is required to understand the nucleation and kinetics of silver nanowire synthesis to enable their scale-up.
590 $a School code: 0003.
650 4 $a Chemistry, Polymer. $3 1018428
690 $a 0495
710 2 $a The University of Akron. $3 1018399
773 0 $t Dissertation Abstracts International $g 68-12B.
790 $a 0003
790 1 0 $a Quirk, Roderic P., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3292812