In Situ Optical Analysis of Structural Changes in Polylactic Acid (PLA) during the Gas Dissolution Process

B. Notario; Javier Pinto; E. Solórzano; J. Escudero; J. Martín de León; D. Velasco; Miguel A. Rodríguez-Pérez

doi:10.4028/www.scientific.net/DDF.353.131

Paper Titles

Thermodynamic Simulation of the Oxidation Processes of Ag₂Se by NaNO₂
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Estimation of a Nusselt Correlation for the Numerical Prediction of Frost Thickness on a Tube Banks of Triangular Arrangement
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Mathematical Modeling of High Energy Ball Milling (HEBM) Process
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In Situ Optical Analysis of Structural Changes in Polylactic Acid (PLA) during the Gas Dissolution Process
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Thermal Expansion of Cu-Ga-Sn Alloys
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Fabrication and Characterization of CeO₂-NiO/SiC Membranes for Hydrogen Permeation
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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 353In Situ Optical Analysis of Structural Changes in...

In Situ Optical Analysis of Structural Changes in Polylactic Acid (PLA) during the Gas Dissolution Process

Abstract:

An own-designed pressure vessel with glass windows has been employed to perform an in-situ characterization of the temporal evolution of the crystallization process of an amorphous polylactic acid (PLA) under different controlled CO₂ pressures and temperatures. It has been proven that crystallinity can be related to optical parameters such as transmissivity, obtaining information about the whole process by optical measurements. The method has the advantage of measuring in-situ over bulk samples with a non-destructive tool. The obtained results have shown some unexpected trends that have been explained taking into account the complex phenomena occurring during the crystallization process of PLA in the presence of CO₂ at high pressure.

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Periodical:

Defect and Diffusion Forum (Volume 353)

Pages:

131-136

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.353.131

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Online since:

May 2014

Authors:

B. Notario*, Javier Pinto, E. Solórzano, J. Escudero, J. Martín de León, D. Velasco, Miguel A. Rodríguez-Pérez

Keywords:

Autoclave with Glass Windows, Carbon Dioxide, Diffusion, Poly(lactic acid) (PLA), Polymer

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