The thermal stability of polyetherimide

Huang, Farong; Wang, Xueqiu; Li, Shijin

doi:10.1016/0141-3910(87)90005-x

Cited by 43 publications

(30 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In conclusion, these experimental results militate in favor of the thermal degradation mechanism proposed for PEI and PC at high temperature in the literature [1,4,7,9], i.e. for an oxidation reaction initiated not only by the thermolytic breakdown of the C-C bonds of the isopropylidene unit, but mainly by the unimolecular decomposition of hydroperoxides, both resulting in the disappearance of CH 3 groups and the formation of alcohols.…”

Section: Resultsmentioning

confidence: 95%

“…4. Thermal degradation mechanism of PEI initiated by two competitive paths [1,4,7,9]: breakdown of C-C bonds of the isopropylidene unit (left) and unimolecular decomposition of hydroperoxides (right). with a force of 500 mN and a loading and unloading rate of 1000 μm min…”

Section: Methodsmentioning

confidence: 99%

“…Mechanisms of chain scission were also proposed to explain the formation of the wide variety of volatile products. Chain scissions occur at the C-C bonds of the isopropylidene unit, but also at the ether bonds between the phenyl and phthalimide rings [1,[6][7][8][9]. They predominate largely over crosslinking at the beginning of exposure, but they become finally negligible in comparison to crosslinking at longer term [1,5,7,10,11].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Multi-scale and multi-technical analysis of the thermal degradation of poly(ether imide)

Courvoisier

Bicaba

Colin

2018

Polymer Degradation and Stability

View full text Add to dashboard Cite

is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. A B S T R A C TThe thermal degradation of PEI has been studied in wide ranges of temperature (between 180 and 250°C) and oxygen partial pressure (between 0.21 and 50 bars). On one hand, the chemical ageing mechanisms have been analysed and elucidated by FTIR spectrophotometry and by differential calorimetry (DSC) on sufficiently thin PEI films (between 10 and 60 μm thickness) to be totally free of the effects of oxygen diffusion. As expected, and by analogy with other aromatic polymers of similar chemical structure, oxidation occurs preferentially on the methyl groups of the isopropylidene unit of the bisphenol A part, thus causing the disappearance of their characteristic IR absorption band at 2970 cm −1 and the growth of a new IR absorption band at 3350 cm −1 , attributed to alcohols. In addition, oxidation leads successively to a relative predominance of chain scissions and crosslinking, resulting in a non-monotonic change of T g . On the other hand, the consequences of oxidation on the elastic properties have been analysed and elucidated by micro-indentation on polished cross-sections of PEI plates of 3 mm thickness. The diffusion control of oxidation leads to the development of profiles of Young's modulus within the sample thickness, which correlate perfectly with the changes in chemical structure determined by FTIR spectrophotometry. However, the increase in Young's modulus in the superficial oxidized layer is not the direct consequence of oxidation but of a physical ageing.

show abstract

Section: Resultsmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multi-scale and multi-technical analysis of the thermal degradation of poly(ether imide)

Courvoisier

Bicaba

Colin

2018

Polymer Degradation and Stability

View full text Add to dashboard Cite

show abstract

“…Ultem therefore has a lower glass transition temperature (217 C) than Kapton (360 C) and can be more readily melt processed. The thermal stability of both polymers is almost the same (AE 500 C under nitrogen) [10]. Properties of some Ultem grades are listed in Table 2.…”

Section: Propertiesmentioning

confidence: 99%

Polymers, High-Temperature

Parker¹,

Bussink²,

Grampel³

et al. 2012

Ullmann's Encyclopedia of Industrial Chemistry

View full text Add to dashboard Cite

“…Its thermal stability is maintained up to ca. 500 C under nitrogen [95]. In commercial PEI grades, additives (e.g., reinforcing fibers) and modified base resins are used to increase the glass transition temperature and chemical resistance.…”

Section: Polyetherimidesmentioning

confidence: 99%

Polymer Blends

Bussink¹,

Grampel²

2000

Ullmann's Encyclopedia of Industrial Chemistry

View full text Add to dashboard Cite

The article contains sections titled: 1. Introduction 2. Market Requirements 3. Blend Technologies 3.1. Thermodynamics 3.2. Compatibility 3.3. Compounding 3.4. Reactive Compounding 3.5. Mechanical Properties 3.6. Additives 4. Property and Application Profiles of Selected Blends 4.1. Polyolefins 4.2. Poly(Vinyl Chloride) 4.3. Styrene Polymers and Copolymers 4.4. Polyamides 4.5. Poly(2,6‐Dimethyl‐1,4‐phenylene Ether) 4.6. Polycarbonates 4.7. Polyesters 4.8. Polyetherimides 4.9. Polysulfones 4.10. Polyoxymethylenes 4.11. Polyarylates and Copolyarylate ‐ Carbonate Blends 4.12. Poly(Phenylene Sulfide) 5. General Application Technology 5.1. Processing of Blends 5.2. Design Technology 6. Future Developments 6.1. Recycling 6.2. New Developments 6.3. Outlook 7. Acknowledgement

show abstract

The thermal stability of polyetherimide

Cited by 43 publications

References 6 publications

Multi-scale and multi-technical analysis of the thermal degradation of poly(ether imide)

Multi-scale and multi-technical analysis of the thermal degradation of poly(ether imide)

Polymers, High-Temperature

Polymer Blends

Contact Info

Product

Resources

About