Morphology evolution of poly(L-lactic acid) (PLLA), poly(.epsilon.-caprolactone) (PCL) and polyethylene oxide (PEO) ternary blend and their effects on mechanical properties for bio scaffold applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00432060" target="_blank" >RIV/61389013:_____/14:00432060 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.7317/pk.2014.38.4.449" target="_blank" >http://dx.doi.org/10.7317/pk.2014.38.4.449</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7317/pk.2014.38.4.449" target="_blank" >10.7317/pk.2014.38.4.449</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Morphology evolution of poly(L-lactic acid) (PLLA), poly(.epsilon.-caprolactone) (PCL) and polyethylene oxide (PEO) ternary blend and their effects on mechanical properties for bio scaffold applications

Popis výsledku v původním jazyce

Ternary blends of poly(L-lactic acid) (PLLA), poly(-caprolactone) (PCL) and polyethylene oxide (PEO) were produced with different concentrations of components via melt blending. By leaching the PEO from the samples by water, porous materials were obtained with potential application for bio scaffolds. Sample porosity was evaluated by calculating the ratio of porous scaffold density () to the non-porous material density (). Highest porosity (51.42%) was related to the samples containing 50 wt%. of PEO. Scanning electron microscopy (SEM) studies showed the best porosity resulted by decreasing PLLA/PCL ratio at constant concentration of PEO. Crystallization behavior of the ternary blend samples was studied using differential scanning calorimetry (DSC). Results revealed that the crystallinity of PLLA was improved by addition of PEO and PCL to the samples. The porosity plays a key role in governing the compression properties. Mechanical properties are presented by Gibson-Ashby model.

Název v anglickém jazyce

Morphology evolution of poly(L-lactic acid) (PLLA), poly(.epsilon.-caprolactone) (PCL) and polyethylene oxide (PEO) ternary blend and their effects on mechanical properties for bio scaffold applications

Popis výsledku anglicky

Ternary blends of poly(L-lactic acid) (PLLA), poly(-caprolactone) (PCL) and polyethylene oxide (PEO) were produced with different concentrations of components via melt blending. By leaching the PEO from the samples by water, porous materials were obtained with potential application for bio scaffolds. Sample porosity was evaluated by calculating the ratio of porous scaffold density () to the non-porous material density (). Highest porosity (51.42%) was related to the samples containing 50 wt%. of PEO. Scanning electron microscopy (SEM) studies showed the best porosity resulted by decreasing PLLA/PCL ratio at constant concentration of PEO. Crystallization behavior of the ternary blend samples was studied using differential scanning calorimetry (DSC). Results revealed that the crystallinity of PLLA was improved by addition of PEO and PCL to the samples. The porosity plays a key role in governing the compression properties. Mechanical properties are presented by Gibson-Ashby model.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Polymer-Korea

ISSN

0379-153X

e-ISSN

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Svazek periodika

38

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

KR - Korejská republika

Počet stran výsledku

8

Strana od-do

449-456

Kód UT WoS článku

000345813500006

EID výsledku v databázi Scopus

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