Direct insertion probe mass spectrometry of polymers

Date

2012-04-16

Author

Hacaloğlu, Jale

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

229
views

0
downloads

This chapter reviews advances in the technique of direct insertion probe mass spectrometry (DIP-MS) and its applications in polymer analysis for various purposes. The applications for thermal characterization involve investigation of the thermal stability, degradation products, and decomposition mechanism of complex polymer samples, in particular polymers involving flame retardants, polyphenylene- and poly(phenylene vinylene)-based materials, and coalesced homopolymers and polymer blends. Examples focused on the use of DIP-MS for elucidation of structural characteristics of conducting polymers and thermosets are also given. The great potential of the technique for identification of additives in complex polymer matrices without time-consuming extractions or derivatizations (because components are separated as a function of their volatilities and/or thermal stabilities) is illustrated.

Subject Keywords

Direct insertion probe, Mass spectrometry, Polymers, Pyrolysis, Thermal degradation

URI

https://hdl.handle.net/11511/32582

Journal

Advances in Polymer Science

DOI

https://doi.org/10.1007/12_2011_133

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Direct insertion mass spectrometric analysis of thermal degradation of poly(2-alkyl-2-oxazoline) Atilkan, Nurcan; Nur, Yusuf; Hacaloğlu, Jale; Schlaad, Helmut (2012-05-14) Direct pyrolysis mass spectrometry is applied to investigate the thermal behavior of poly(2-isopropyl-2-oxazoline) (PIPOX, a thermoresponsive polymer) and poly[2-(3-butenyl)-2-oxazoline] (PBOX, a clickable polymer). It is found that the thermal degradation of PIPOX is started by a loss of side chains. At slightly higher temperatures the degradation of the polymer backbone occurs by random chain scission processes. In the case of PBOX, vinyl polymerization of the side chains produces chains with variable the...
Spectroscopic investigation of oxidation of p-toluene sulfonic acid doped polypyrrole Uyar, Tamer; Toppare, Levent Kamil; Hacaloğlu, Jale (2001-09-04) Oxidative degradation of electrochemically synthesized p-toluene sulfonic acid doped polypyrrole, PTS-PPY was studied by the application of evolved gas analysis using IR spectroscopy and direct insertion probe pyrolysis mass spectrometry techniques. It has been observed that PPY films prepared in aqueous media contained high concentration of oxygenated species even if the synthesis potential was kept low. The extent of overoxidation associated to ketone formation increased by increasing the applied potentia...
Thermal degradation of polylactide/aluminium diethylphosphinate Kaya, Hatice; Hacaloğlu, Jale (2014-11-01) Direct pyrolysis mass spectrometry analyses of polylactide, PLA, reveal two dominating decomposition pathways; chain homolysis and trans-esterification reactions under the experimental conditions yielding mainly low mass fragments and cyclic oligomers. The main pyrolysis products of aluminium diethylphosphinate, AlPi, are determined to be the dimeric four coordinate compounds possessing Al-O-P linkages. Thermal stability of polylactide in the presence of AlPi is decreased due to the attack of phosphinates g...
Direct pyrolysis mass spectrometry analysis of fresh and aged PF6--doped polythiophenes Gozet, Tuba; Hacaloğlu, Jale (2004-12-01) In this study, pyrolysis mass spectrometry has been applied for the investigation of thermal characteristics of PF6--doped polythiophene (PTh) films. Thermal degradation of PTh showed behaviour identical with BF4--doped polythiophene (BF4--PTh), indicating that the effects of the dopants in question on the thermal characteristics of the PTh are not significant. Besides the oligomer peaks (up to hexamer), peaks indicating decomposition of the thiophene ring have also been detected as in the case of BF4--PTh....
Thermal decomposition of glycidyl azide polymer by direct insertion probe mass spectrometry Fazlioǧlu, Hatice; Hacaloğlu, Jale (2002-01-01) Thermal decomposition reactions and products of glycidyl azide polymer (GAP), have been investigated by direct insertion mass spectrometry and evolved gas analyses by FTIR spectroscopy techniques. It has been observed that thermal degradation of GAP begins with cleavage of the side groups. Although the main decomposition started with the elimination of molecular nitrogen from the azide functional group, degradation initiated by loss of N-3 and CH2N3, depolymerization type reactions were also identified. Rea...

Citation Formats

J. Hacaloğlu, “Direct insertion probe mass spectrometry of polymers,” Advances in Polymer Science, pp. 69–103, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32582.