Thermal degradation of polystyrene composites. Part I. The effect of brominated polyepoxy and antimony oxide

Kaya, Hatice; Hacaloğlu, Jale

doi:10.1016/j.jaap.2013.11.017

Cited by 7 publications

(7 citation statements)

References 23 publications

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“…At the heat preservation stage, on pyrolysis in N 2 , low-brominated BPA epoxy resin underwent C–O thermal random fissions, causing products conversion to heavy components in the PO and PR . On the one hand, some bisphenol A ethers formed because 2-propanol groups cannot be completely dissociated (Figure ), and the ethers will evaporate into the pyrolysis oil.…”

Section: Resultsmentioning

confidence: 99%

“…On the one hand, some bisphenol A ethers formed because 2-propanol groups cannot be completely dissociated (Figure ), and the ethers will evaporate into the pyrolysis oil. On the other hand, due to the thermal fission of C–O and the lack of hydrogen, phenoxy radicals are more likely formed and then converted to cyclopentadienyl radicals after a CO elimination–ring contraction reaction . Due to recombination and cycloaddition of the cyclopentadienyl radical and other aromatic groups, larger groups formed.…”

Section: Resultsmentioning

confidence: 99%

“…After HBr was generated, some would be added to the ether bonds (Figure S2), thus accelerating the breaking of the epoxy units. 21 the −CH 2 CHOHCH 2 − structure between bisphenol A may evolve into BrCH 2 CHOHCH 2 Br or BrCH 2 CHOHCH 3 after an additional fracture, 42 which may be rearranged to form CH 3 Br. Meanwhile, dibromobisphenol A was separated and cracked to form 2,6-dibromophenol and 2,6-dibromo-4isopropylphenol.…”

Section: Parameter Optimization Of Pyrolysis In Water Vapormentioning

confidence: 99%

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Enhancing Debromination Efficiency through Introducing Water Vapor Atmosphere to Overcome Limitations of Conventional Pyrolysis

Chen,

Zhan,

2023

Environ. Sci. Technol.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Parameter Optimization Of Pyrolysis In Water Vapormentioning

confidence: 99%

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Enhancing Debromination Efficiency through Introducing Water Vapor Atmosphere to Overcome Limitations of Conventional Pyrolysis

Chen,

Zhan,

2023

Environ. Sci. Technol.

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“…Part B is composed of benzoyl peroxide. It is noted that the SMP includes some bonds such as CO, CO, OO, and COOH, which are sensitive to heat . Chemical structure of each component in the SMP is shown in Figure .…”

Section: Methodsmentioning

confidence: 99%

“…It is noted that most researchers have focused on the thermal decomposition of conventional polymer‐based composites, and synthesis, shape memory, self‐healing, and mechanical properties of SMP composites . However, few studies were conducted to discuss effects of the programming or training on thermal properties of SMP‐based composites.…”

Section: Introductionmentioning

confidence: 99%

Effects of two‐dimensional programming on microstructures and thermal properties of shape memory polymer‐based composites

Shen

Shi

2017

J of Applied Polymer Sci

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To evaluate the effects of two‐dimensional (2D) programming on thermal properties of shape memory polymer (SMP)‐based composites when exposed to high temperature, the specimens of composites were prepared and programmed. Then the morphology, thermal properties, dynamic evolution, and constituents of released gaseous products were characterized. Results indicate that the programmed composite is more compacted, but the proportion of interconnected voids is larger than that in the nonprogrammed sample. 2D programming causes molecular or segmental orientations in SMP, and leads to the decrease in the char yield from 16.1 to 8.1%. The programmed sample shows a lower thermal stability. Further, the melting enthalpy of nonprogrammed composite is 1012 J/g which is lower than 1100 J/g of the programmed sample. The prestored stress in oriented molecules or segments of SMP is more prone to cause the chain scissions. The dynamic evolution and constituents of released volatiles from nonprogrammed and programmed samples are similar, but the release amount of volatiles from the latter is larger. Finally, the more compacted charring layer of nonprogrammed composite is more efficient to prevent volatiles from releasing out. The 2D programming has a slight influence on the elemental contents of O, Si, and C in the charring layer. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45480.

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Role of Mass Spectrometry in the Elucidation of Thermal Degradation Mechanisms in Polymeric Materials

Rizzarelli¹,

Carroccio²

2015

Reactions and Mechanisms in Thermal Analysis of Advanced Materials

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Thermal degradation of polystyrene composites. Part I. The effect of brominated polyepoxy and antimony oxide

Cited by 7 publications

References 23 publications

Enhancing Debromination Efficiency through Introducing Water Vapor Atmosphere to Overcome Limitations of Conventional Pyrolysis

Enhancing Debromination Efficiency through Introducing Water Vapor Atmosphere to Overcome Limitations of Conventional Pyrolysis

Effects of two‐dimensional programming on microstructures and thermal properties of shape memory polymer‐based composites

Role of Mass Spectrometry in the Elucidation of Thermal Degradation Mechanisms in Polymeric Materials

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