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An in situ FTIR study of undoped PolyBenzoImadazole as a function of relative humidity

Lookup NU author(s): Professor Paul ChristensenORCiD, Steven Jones



This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).


Undoped, cast films of PolyBenzoImadazole (PBI) were investigated as a function of humidity using both H2O and D2O, and as a function of temperature up to 100 degrees C in order to better understand the infrared response of this polymer, as well as to provide benchmark data for subsequent studies on acid doped PBI. Marked changes across the mid-IR range were observed during the uptake of water and D2O. The use of D2O proved extremely useful in terms of deconvoluting the complex IR response observed and allowed the IR data to be rationalised in terms of the disruption of the N-H center dot center dot center dot N inter-chain hydrogen bonded network and changes in the morphology of the polymer. (C) 2014 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Christensen PA, Jones SWM

Publication type: Article

Publication status: Published

Journal: Polymer Degradation and Stability

Year: 2014

Volume: 105

Pages: 211-217

Print publication date: 01/07/2014

Online publication date: 02/05/2014

Acceptance date: 23/04/2014

Date deposited: 03/10/2014

ISSN (print): 0141-3910

ISSN (electronic): 1873-2321

Publisher: Elsevier


DOI: 10.1016/j.polymdegradstab.2014.04.020


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Funder referenceFunder name
EP/G030995/1EPSRC under the Hydrogen and Fuel Cells Supergen initiative