Influence of the organoclay content on the structure, morphology, and surface related properties of novel poly(dimethylsiloxane)-based polyurethane/organoclay nanocomposites
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F17%3A00474957" target="_blank" >RIV/61389013:_____/17:00474957 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216275:25310/17:39915945
Výsledek na webu
<a href="http://dx.doi.org/10.1021/acs.iecr.6b04913" target="_blank" >http://dx.doi.org/10.1021/acs.iecr.6b04913</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.iecr.6b04913" target="_blank" >10.1021/acs.iecr.6b04913</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Influence of the organoclay content on the structure, morphology, and surface related properties of novel poly(dimethylsiloxane)-based polyurethane/organoclay nanocomposites
Popis výsledku v původním jazyce
Novel poly(dimethylsiloxane)-based polyurethane nanocomposites (TPU-NCs) were synthesized using in situ polymerization with the nanoclay Cloisite 30B. Differential scanning calorimetry, thermogravimetric analysis, and dynamic mechanical thermal analysis showed that TPU-NCs with an organoclay content of <=5 wt % exhibited increased thermal stability, storage modulus, and hard-segment melt temperatures but decreased degrees of crystallinity. TPU-NCs displayed increased surface hydrophilicity and enhanced surface free energy with increasing organoclay content. Small- and wide-angle X-ray scattering confirmed intercalated formations of organoclays in the nanocomposites. Individual clay particles on the surfaces of TPUs with lower organoclay loadings (1 or 3 wt %) or organoclay agglomerates in TPUs with higher amounts of organoclay (>=5 wt %) were detectable using scanning electron microscopy. The relatively smooth and homogeneous character of pure TPU and the distinctly heterogeneous and rough surfaces of TPU-NCs were detected via atomic force microscopy. Among the nanomaterials prepared, TPU-NCs with 1 wt % organoclay provided the best balance between the organoclay concentration and the functional properties desired in biomedical applications.
Název v anglickém jazyce
Influence of the organoclay content on the structure, morphology, and surface related properties of novel poly(dimethylsiloxane)-based polyurethane/organoclay nanocomposites
Popis výsledku anglicky
Novel poly(dimethylsiloxane)-based polyurethane nanocomposites (TPU-NCs) were synthesized using in situ polymerization with the nanoclay Cloisite 30B. Differential scanning calorimetry, thermogravimetric analysis, and dynamic mechanical thermal analysis showed that TPU-NCs with an organoclay content of <=5 wt % exhibited increased thermal stability, storage modulus, and hard-segment melt temperatures but decreased degrees of crystallinity. TPU-NCs displayed increased surface hydrophilicity and enhanced surface free energy with increasing organoclay content. Small- and wide-angle X-ray scattering confirmed intercalated formations of organoclays in the nanocomposites. Individual clay particles on the surfaces of TPUs with lower organoclay loadings (1 or 3 wt %) or organoclay agglomerates in TPUs with higher amounts of organoclay (>=5 wt %) were detectable using scanning electron microscopy. The relatively smooth and homogeneous character of pure TPU and the distinctly heterogeneous and rough surfaces of TPU-NCs were detected via atomic force microscopy. Among the nanomaterials prepared, TPU-NCs with 1 wt % organoclay provided the best balance between the organoclay concentration and the functional properties desired in biomedical applications.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10404 - Polymer science
Návaznosti výsledku
Projekt
<a href="/cs/project/GA13-06700S" target="_blank" >GA13-06700S: Multifunkční vysoce elastické polymerní materiály s řízenou biodegradabilitou</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Industrial and Engineering Chemistry Research
ISSN
0888-5885
e-ISSN
—
Svazek periodika
56
Číslo periodika v rámci svazku
17
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
14
Strana od-do
4970-4983
Kód UT WoS článku
000400802200009
EID výsledku v databázi Scopus
2-s2.0-85020757779