Thermal degradation of polylactide/aluminium diethylphosphinate

Kaya, Hatice
Hacaloğlu, Jale
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 groups on carbonyl groups. Eventually, extensive fragmentation of PLA takes place and generation of four coordinate dimeric compounds involving Al O P linkages is suppressed. On the other hand, strong evidence for generation of polyphosphinates is detected. Collision induced dissociation experiments are used to confirm the proposed structures.


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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...
Thermal decomposition of polystyrene-b-poly(2-vinylpyridine) coordinated to co nanoparticles
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Hacaloğlu, Jale (2012-04-16)
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Thermal degradation characteristics of polysulfones with benzoxazine end groups
Orhan, Tugba; Ates, Sahin; Hacaloğlu, Jale; Yagci, Yusuf (2012-01-01)
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Thermal degradation of poly(p-phenylene-graft-ε-caprolactone) copolymer
Nur, Yusuf; Yurteri, Seda; Cianga, Ioan; Yagci, Yusuf; Hacaloğlu, Jale (2007-01-01)
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Citation Formats
H. Kaya and J. Hacaloğlu, “Thermal degradation of polylactide/aluminium diethylphosphinate,” JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, pp. 155–162, 2014, Accessed: 00, 2020. [Online]. Available: