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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216208:11310/17:10368344

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20903 - Bioproducts (products that are manufactured using biological material as feedstock) biomaterials, bioplastics, biofuels, bioderived bulk and fine chemicals, bio-derived novel materials

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Macromolecular Research

ISSN

1598-5032

e-ISSN

—

Svazek periodika

25

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

KR - Korejská republika

Počet stran výsledku

10

Strana od-do

180-189

Kód UT WoS článku

000395054600012

EID výsledku v databázi Scopus

2-s2.0-85007417040