Kinetics of Coarsening in Immiscible Poly(?-caprolactone)/Poly(styrene-co-acrylonitrile) Blends
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F12%3A43866856" target="_blank" >RIV/70883521:28110/12:43866856 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/70883521:28610/12:43866856
Výsledek na webu
<a href="http://dx.doi.org/10.1038/pj.2011.110" target="_blank" >http://dx.doi.org/10.1038/pj.2011.110</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/pj.2011.110" target="_blank" >10.1038/pj.2011.110</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Kinetics of Coarsening in Immiscible Poly(?-caprolactone)/Poly(styrene-co-acrylonitrile) Blends
Popis výsledku v původním jazyce
The morphological development of immiscible blends of poly(e-caprolactone) (PCL) and poly(styrene-co-acrylonitrile) (SAN) during static annealing was studied using time-resolved light scattering and optical microscopy. In the melt-blended samples, coarsening was not observable at low temperatures, even above the glass transition temperature of SAN (Tg=113°C). It occurred when a critical temperature T* (for example, 170°C for a PCL/SAN (50/50) blend) was reached. T* was found to have a strong dependenceon the blend composition, and we suggest that this results from an effect of the large difference in viscosities of pure PCL and SAN on the particle collision rate. The morphological development of solution-prepared blends was found to differ greatly from that of the melt-blended samples. At first, spinodal decomposition (SD) began, and then collision kinetics prevailed over SD. After the particles grew to a size of approximately 10 microms, secondary SD took place and small domains (l m
Název v anglickém jazyce
Kinetics of Coarsening in Immiscible Poly(?-caprolactone)/Poly(styrene-co-acrylonitrile) Blends
Popis výsledku anglicky
The morphological development of immiscible blends of poly(e-caprolactone) (PCL) and poly(styrene-co-acrylonitrile) (SAN) during static annealing was studied using time-resolved light scattering and optical microscopy. In the melt-blended samples, coarsening was not observable at low temperatures, even above the glass transition temperature of SAN (Tg=113°C). It occurred when a critical temperature T* (for example, 170°C for a PCL/SAN (50/50) blend) was reached. T* was found to have a strong dependenceon the blend composition, and we suggest that this results from an effect of the large difference in viscosities of pure PCL and SAN on the particle collision rate. The morphological development of solution-prepared blends was found to differ greatly from that of the melt-blended samples. At first, spinodal decomposition (SD) began, and then collision kinetics prevailed over SD. After the particles grew to a size of approximately 10 microms, secondary SD took place and small domains (l m
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
CD - Makromolekulární chemie
OECD FORD obor
—
Návaznosti výsledku
Projekt
<a href="/cs/project/ED2.1.00%2F03.0111" target="_blank" >ED2.1.00/03.0111: Centrum polymerních systémů</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2012
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Polymer Journal
ISSN
0032-3896
e-ISSN
—
Svazek periodika
2012, 44
Číslo periodika v rámci svazku
2
Stát vydavatele periodika
JP - Japonsko
Počet stran výsledku
7
Strana od-do
155-161
Kód UT WoS článku
000300407800003
EID výsledku v databázi Scopus
—