Carbodiimide additive to control hydrolytic stability and biodegradability of PLA

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F16%3A43874571" target="_blank" >RIV/70883521:28610/16:43874571 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28110/16:43874571
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0142941816302446" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0142941816302446</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.polymertesting.2016.06.007" target="_blank" >10.1016/j.polymertesting.2016.06.007</a>

Result language
angličtina
Original language name
Carbodiimide additive to control hydrolytic stability and biodegradability of PLA
Original language description
Enhanced durability of bio-based polylactic acid (PLA) is one of the prerequisites to be a considered as alternative to petroleum-based polymers in long time application. The effect of bis(2,6-diisopropylphenyl)carbodiimide (BDICDI) additive in various concentration on the extent of hydrolytic stabilization and subsequent degradation kinetics of PLA was studied in the process of abiotic hydrolysis and microbial decomposition under composting conditions. The study showed that BDICDI acts as an efficient stabilizer suppressing the hydrolytic scission of ester bonds of PLA in both degradation processes tested, especially at concentrations above 1.5% w/w. Within the stabilization period which strongly depends on concentrations of BDICDI, suppression of hydrolytic degradation also triggered preservation of thermal and mechanical properties. After the period of stabilization as the dose of stabilizer is depleted, probably via reaction with water molecules and carboxylic groups, the material was hydrolyzed at a comparable or even slightly higher rate than pure PLA. By applying the appropriate amount of BDICDI, the approximate duration of stabilization could be set to suit the desired requirements of the final product.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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