Synthesis and characterization of star-shaped carboxyl group functionalized poly(lactic acid) through polycondensation reaction

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F17%3A63517033" target="_blank" >RIV/70883521:28610/17:63517033 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/17:10368344
Result on the web
<a href="https://link.springer.com/article/10.1007/s13233-017-5014-z" target="_blank" >https://link.springer.com/article/10.1007/s13233-017-5014-z</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s13233-017-5014-z" target="_blank" >10.1007/s13233-017-5014-z</a>

Result language
angličtina
Original language name
Synthesis and characterization of star-shaped carboxyl group functionalized poly(lactic acid) through polycondensation reaction
Original language description
Present paper deals with the preparation and characterization of carboxyl-functionalized poly(lactic acid) (PLA) of non-linear, star-shaped architecture prepared by direct melt polycondensation of lactic acid and pentetic acid - applied as a star polymer core. Influence of the optical purity of the lactic acid (L or DL) on the structure and properties of the product is investigated in close details. The influence of pentetic acid core on molar mass, as analysed by the means of gel permeation chromatography using triple detection (refractive index, light scattering and viscometric detectors) is performed as a detailed survey. Furthermore FTIR and NMR spectra, end group analysis, and water contact angle measurements were analysed to receive detailed product characteristics. Differential scanning calorimetry was carried out to examine thermal properties. Obtained results confirm the possibility of the starshaped structure preparation using a simple polycondensation reaction. The properties of the prepared polymers were found to be dependent on optical purity of the lactic acid precursor.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20903 - Bioproducts (products that are manufactured using biological material as feedstock) biomaterials, bioplastics, biofuels, bioderived bulk and fine chemicals, bio-derived novel materials

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)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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