Effect of PLA grades and morphologies on hydrolytic degradation at composting temperature: Assessment of structural modification and kinetic parameters

Gorrasi, Giuliana; Pantani, Roberto

doi:10.1016/j.polymdegradstab.2013.02.005

Cited by 243 publications

(186 citation statements)

References 41 publications

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“…The difference in morphology between amorphous and crystalline samples is well evidenced by the presence in the amorphous crystalline samples of a peak at 922 cm -1 (marked with an arrow in Fig. 7) [15].…”

Section: Transport Properties By Ftirmentioning

confidence: 85%

A spectroscopic approach to assess transport properties of water vapor in PLA

2015

Self Cite

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Section: Transport Properties By Ftirmentioning

confidence: 85%

A spectroscopic approach to assess transport properties of water vapor in PLA

2015

Self Cite

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“…The coating is prepared using poly lactic acid PLA 4060D (Natureworks) characterized by a D-lactide content of 12 wt%, that confers an amorphous morphology to the material, an average molecular weight of 188 kDa and a polydispersity index of 1.8 [26]. All others reagents used was analytical grade.…”

Section: Methodsmentioning

confidence: 99%

Effect of BOPET film surface treatments on adhesion performance of biodegradable coatings for packaging applications

Barbaro

Galdi

Maio

et al. 2015

European Polymer Journal

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“…Some k u and k c values have been reported in the literature for auto-catalyzed hydrolyses (12,(36)(37)(38)(39)(40)(41)(42) . For instance, Krammer and Vogel (12) presented a plot for the hydrolysis of ethyl acetate, which displays a curvature from which A can be assessed by using (11) and the time for consuming half the initial esters.…”

Section: Figurementioning

confidence: 99%

Crosslink Density Changes during the Hydrolysis of Tridimensional Polyesters

Richaud

Pierre

Coquillat

et al. 2014

Macro Theory & Simulations

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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. The hydrolysis of almost ideal networks based on macrodiols (poly(adipate of ethylene glycol)) of average molar mass about 2 kg/mol, with L=18 ester groups per chain has been studied. Tensile testing was used to evaluate the crosslink density through the statistical theory of rubber elasticity at two temperatures and three values of relative humidity. A kinetic model for ester consumption including an autocatalysis term was proposed and combined with two original approaches for modeling the crosslink density changes. This allowed kinetic parameters of hydrolysis to be determined, and very good predictions were obtained for the variations of crosslink density (or elastic modulus) in the three aging conditions considered.The initial curvature of elastic modulus vs. time was predicted positive for weak autocatalysis and negative for strong autocatalysis. The obtained conversion ratio at degelation was found to decrease sharply with the number of esters per elastically active chain.

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Effect of PLA grades and morphologies on hydrolytic degradation at composting temperature: Assessment of structural modification and kinetic parameters

Cited by 243 publications

References 41 publications

A spectroscopic approach to assess transport properties of water vapor in PLA

A spectroscopic approach to assess transport properties of water vapor in PLA

Effect of BOPET film surface treatments on adhesion performance of biodegradable coatings for packaging applications

Crosslink Density Changes during the Hydrolysis of Tridimensional Polyesters

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