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Novel polyphosphazenes for proton ex...

Ambler, Catherine Michelle.

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Novel polyphosphazenes for proton exchange membrane fuel cell applications.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Novel polyphosphazenes for proton exchange membrane fuel cell applications./
Author:	Ambler, Catherine Michelle.
Description:	217 p.
Notes:	Source: Dissertation Abstracts International, Volume: 65-09, Section: B, page: 4596.
Contained By:	Dissertation Abstracts International65-09B.
Subject:	Chemistry, Polymer. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3147575
ISBN:	0496066064

Novel polyphosphazenes for proton exchange membrane fuel cell applications.
Ambler, Catherine Michelle.

Novel polyphosphazenes for proton exchange membrane fuel cell applications. - 217 p.

Source: Dissertation Abstracts International, Volume: 65-09, Section: B, page: 4596.

Thesis (Ph.D.)--The Pennsylvania State University, 2004.

The work in this thesis deals primarily with proton conductive polymeric materials aimed at fuel cell applications.

ISBN: 0496066064Subjects--Topical Terms:

1018428
Chemistry, Polymer.

Novel polyphosphazenes for proton exchange membrane fuel cell applications.
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035 $a (UnM)AAI3147575
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100 1 $a Ambler, Catherine Michelle. $3 1929482
245 1 0 $a Novel polyphosphazenes for proton exchange membrane fuel cell applications.
300 $a 217 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-09, Section: B, page: 4596.
500 $a Adviser: H. R. Allcock.
502 $a Thesis (Ph.D.)--The Pennsylvania State University, 2004.
520 $a The work in this thesis deals primarily with proton conductive polymeric materials aimed at fuel cell applications.
520 $a Chapter 4 contains a description of the synthesis of phenyl phosphoric acid functionalized poly(aryloxyphosphazenes). The base polymer poly[(p-methyl phenoxy)-co-(p-bromophenoxy)phosphazene] was treated with LiBu and diphenyl chlorophosphate, followed by deprotection with NaOH. The resultant polymer was acidified, purified, and characterized for chemical structure. Chapter 5 continues the evaluation of these materials, specifically in relation to fuel cell relevant properties such as ion exchange capacity, proton conductivity, water uptake, methanol diffusion, and thermal transitions.
520 $a In chapter 6, the development and characterization of a novel sulfonimide-based sidegroup is presented. Synthetic procedures for both the production of the sidegroup as well as the subsequent substitution onto the polymer are detailed. The resultant materials are characterized with respect to ion exchange capacity, water uptake, and proton conductivity. Initial experimentation with blend techniques is also presented. Chapter 7 continues this work, with an expanded look at the properties of these materials and the effects of modification of sidegroup incorporation, blend incorporation, and degree of cross-linking on the properties of proton conductivity, water uptake, ion exchange capacity, and thermal stability. Chapter 8 culminates the work with an evaluation of the sulfonimide based materials in a fuel cell system. This section includes a performance comparison with Nafion, the benchmark standard in the proton exchange membrane fuel cell industry. (Abstract shortened by UMI.)
590 $a School code: 0176.
650 4 $a Chemistry, Polymer. $3 1018428
650 4 $a Energy. $3 876794
690 $a 0495
690 $a 0791
710 2 0 $a The Pennsylvania State University. $3 699896
773 0 $t Dissertation Abstracts International $g 65-09B.
790 1 0 $a Allcock, H. R., $e advisor
790 $a 0176
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3147575