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High temperature polymer degradation: Rapid IR flow-through method for volatile quantification

Journal Article · · Polymer Degradation and Stability
 [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Organic Materials Science Dept.

Accelerated aging of polymers at elevated temperatures often involves the generation of volatiles. These can be formed as the products of oxidative degradation reactions or intrinsic pyrolytic decomposition as part of polymer scission reactions. A simple analytical method for the quantification of water, CO2, and CO as fundamental signatures of degradation kinetics is required. Here, we describe an analytical framework and develops a rapid mid-IR based gas analysis methodology to quantify volatiles that are contained in small ampoules after aging exposures. The approach requires identification of unique spectral signatures, systematic calibration with known concentrations of volatiles, and a rapid acquisition FTIR spectrometer for time resolved successive spectra. Furthermore, the volatiles are flushed out from the ampoule with dry N2 carrier gas and are then quantified through spectral and time integration. This method is sufficiently sensitive to determine absolute yields of ~50 μg water or CO2, which relates to probing mass losses of less than 0.01% for a 1 g sample, i.e. the early stages in the degradation process. Such quantitative gas analysis is not easily achieved with other approaches. Our approach opens up the possibility of quantitative monitoring of volatile evolution as an avenue to explore polymer degradation kinetics and its dependence on time and temperature.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1360931
Alternate ID(s):
OSTI ID: 1550080
OSTI ID: 1464176
Report Number(s):
SAND--2017-5314J; PII: S0141391017301362
Journal Information:
Polymer Degradation and Stability, Journal Name: Polymer Degradation and Stability Vol. 145; ISSN 0141-3910
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (46)

Thermal-Oxidative Degradation of Epoxy and Epoxy-Bismaleimide Networks: Kinetics and Mechanism journal December 2001
Solid‐phase microextraction (SPME) in polymer characterization—Long‐term properties and quality control of polymeric materials journal May 2003
The thermal degradation in vacuo of an amine-cured epoxide resin journal August 1970
The mechanism of the thermal degradation of aromatic amine-cured glycidyl ether-type epoxide resins journal June 1975
Improved chemometric strategies for quantitative FTIR spectral analysis and applications in atmospheric open‐path monitoring journal January 2001
Epoxy resins. III. Application of fourier transform IR to degradation studies of epoxy systems journal October 1979
Solid Phase Microextraction for Analysis of Polymer Degradation Products and Additives book January 2007
FTIR and GC as complementary tools for analysis of corrosive gases journal October 2009
Influence of measuring conditions on the quantification of spectroscopic signals in TA-FTIR-MS systems journal February 2006
Characterization of Volatile Nylon 6.6 Thermal-Oxidative Degradation Products by Selective Isotopic Labeling and Cryo-GC/MS journal June 2012
Thermal decomposition of 4,4′-diaminodiphenylsulphone journal August 1995
Degradation of epoxy polymers: Part 1—Products of thermal degradation of bisphenol-A diglycidyl ether journal January 1985
Degradation of epoxy polymers: 2—Mechanism of thermal degradation of bisphenol-A diglycidyl ether journal January 1985
Mechanistic study of thermal behaviour and combustion performance of epoxy resins. II. TGDDM/DDS system journal January 1995
Mass spectroscopy analysis of volatile photoproducts in photooxidation of polypropylene journal January 1995
Thermal analysis of some aromatic amine cured model epoxy resin systems—II: Residues of degradation journal October 1996
Real-time evolved gas analysis by FTIR method: an experimental study of cellulose pyrolysis journal October 2001
Headspace solid-phase microextraction — a tool for new insights into the long-term thermo-oxidation mechanism of polyamide 6.6 journal October 2001
Hygrothermal effects of epoxy resin. Part I: the nature of water in epoxy journal September 1999
Advanced pulse calibration techniques for the quantitative analysis of TG–FTIR data journal July 2002
Quantitative calibration of mass spectrometric signals measured in coupled TA-MS system journal July 1997
Use of pyrolysis-gas chromatography/mass spectrometry to study environmental pollution caused by synthetic polymers: a case study: the Ravenna Lagoon journal April 2001
Quantification of fire gases by FTIR: Experimental characterisation of calibration systems journal July 2011
Real-time method for the identification and quantification of hydrocarbon pyrolysis products: Part I. Development and validation of the infra red technique journal July 2011
The development of a SPME-GC/MS method for the analysis of VOC emissions from historic plastic and rubber materials journal January 2016
Solid phase microextraction to concentrate volatile products from thermal degradation of polymers journal July 2005
The genesis of CO2 and CO in the thermooxidative degradation of polypropylene journal January 2007
A quantitative study of carbon monoxide and carbon dioxide evolution during thermal degradation of flame retarded epoxy resins journal May 2007
The origins of volatile oxidation products in the thermal degradation of polypropylene, identified by selective isotopic labeling journal November 2007
Photodegradation and weathering effects on timber surface moisture profiles as studied using dynamic vapour sorption journal December 2010
Thermal stability of high temperature epoxy adhesives by thermogravimetric and adhesive strength measurements journal October 2011
The origins of CO2 and NH3 in the thermal-oxidative degradation of nylon 6.6 journal August 2012
Review of polymer oxidation and its relationship with materials performance and lifetime prediction journal December 2013
Correlation between water diffusion and adhesion loss: Study of an epoxy primer on steel journal November 2009
Characterizing water sorption in 100% solids epoxy coatings journal September 2013
FTIR quantitative analysis technique for gases. Application in a biomass thermochemical process journal May 2012
Applications of evolved gas analysisPart 1: EGA by infrared spectroscopy journal January 2006
Applications of evolved gas analysisPart 2: EGA by mass spectrometry journal June 2006
Simple methods for calibrating IR in TGA/IR analyses journal February 2005
Quantitative calibration of spectroscopic signals in combined TG-FTIR system journal January 2006
Analysis of polyethylene microplastics in environmental samples, using a thermal decomposition method journal November 2015
Precision Trace Gas Analysis by FT-IR Spectroscopy. 1. Simultaneous Analysis of CO 2 , CH 4 , N 2 O, and CO in Air journal January 2000
Investigation of Water Diffusion Mechanisms in Relation to Polymer Relaxations in Polyamides journal August 2015
Indicator Products: A New Tool for Lifetime Prediction of Polymeric Materials journal January 2005
Trace Water Vapor Detection in Nitrogen and Corrosive Gases by FTIR Spectroscopy journal August 1995
Quantitative Gas Analysis with FT-IR: A Method for CO Calibration Using Partial Least-Squares with Linearized Data journal April 1995

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Aromatic fluorocopolymers based on α-(difluoromethyl)styrene and styrene: synthesis, characterization, and thermal and surface properties journal January 2018

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