Matches in SemOpenAlex for { <https://semopenalex.org/work/W2043821000> ?p ?o ?g. }
- W2043821000 endingPage "4237" @default.
- W2043821000 startingPage "4225" @default.
- W2043821000 abstract "The mechanical properties of particulate nanocomposites strongly depend upon the particle dispersion, as well as on the closely related properties in thin polymer films covering the particle surface. The length scale of such changes is relevant for the understanding of particle–particle interactions, which ultimately dominate the mechanical response. Using well-defined 44 nm diameter silica nanoparticles dispersed in poly(ethylene glycol), we focus on surface-induced changes in polymer dynamics. Using proton time-domain NMR, we distinguish three polymer phases of different mobility, i.e., a strongly adsorbed, solid-like fraction, a fraction with intermediate relaxation times and a highly mobile fraction. We explore how these fractions change as we vary polymer molecular weight from 300 to 20 000 and particle volume fraction up to 0.3. A multiple-quantum experiment enables a closer analysis of the mobile component which we show consists of two fractions, one resembling the bulk melt-like and another one showing network-like properties. We demonstrate that above a polymer molecular weight-dependent volume fraction, polymers form elastically active links between particles, resulting in the physical gelation observed in such systems. Our results provide a quantitative picture of network formation, which is described by the amount and length of network-like chains as well as heterogeneities in the polymer dynamics. We relate changes in polymer dynamics to particle microstructure obtained from small angle neutron scattering." @default.
- W2043821000 created "2016-06-24" @default.
- W2043821000 creator A5013584939 @default.
- W2043821000 creator A5060034817 @default.
- W2043821000 creator A5070468488 @default.
- W2043821000 creator A5091173043 @default.
- W2043821000 date "2012-05-04" @default.
- W2043821000 modified "2023-10-01" @default.
- W2043821000 title "Polymer Dynamics in PEG-Silica Nanocomposites: Effects of Polymer Molecular Weight, Temperature and Solvent Dilution" @default.
- W2043821000 cites W1964793062 @default.
- W2043821000 cites W1966528580 @default.
- W2043821000 cites W1967532363 @default.
- W2043821000 cites W1972997212 @default.
- W2043821000 cites W1975002864 @default.
- W2043821000 cites W1975147634 @default.
- W2043821000 cites W1975288298 @default.
- W2043821000 cites W1977110746 @default.
- W2043821000 cites W1977225912 @default.
- W2043821000 cites W1979353313 @default.
- W2043821000 cites W1979908328 @default.
- W2043821000 cites W1983260751 @default.
- W2043821000 cites W1991037488 @default.
- W2043821000 cites W1991815106 @default.
- W2043821000 cites W1992869614 @default.
- W2043821000 cites W1995183690 @default.
- W2043821000 cites W2000525090 @default.
- W2043821000 cites W2005645479 @default.
- W2043821000 cites W2008368175 @default.
- W2043821000 cites W2012629774 @default.
- W2043821000 cites W2013689965 @default.
- W2043821000 cites W2013707229 @default.
- W2043821000 cites W2019933777 @default.
- W2043821000 cites W2027696247 @default.
- W2043821000 cites W2036169567 @default.
- W2043821000 cites W2036823634 @default.
- W2043821000 cites W2037735068 @default.
- W2043821000 cites W2039041274 @default.
- W2043821000 cites W2040124111 @default.
- W2043821000 cites W2041738845 @default.
- W2043821000 cites W2054029018 @default.
- W2043821000 cites W2059587579 @default.
- W2043821000 cites W2068663858 @default.
- W2043821000 cites W2069431751 @default.
- W2043821000 cites W2069966798 @default.
- W2043821000 cites W2072839615 @default.
- W2043821000 cites W2074288637 @default.
- W2043821000 cites W2074743187 @default.
- W2043821000 cites W2080350357 @default.
- W2043821000 cites W2081124866 @default.
- W2043821000 cites W2083049409 @default.
- W2043821000 cites W2086574238 @default.
- W2043821000 cites W2087920136 @default.
- W2043821000 cites W2088551312 @default.
- W2043821000 cites W2089124524 @default.
- W2043821000 cites W2094327233 @default.
- W2043821000 cites W2102640469 @default.
- W2043821000 cites W2117339135 @default.
- W2043821000 cites W2122676372 @default.
- W2043821000 cites W2126545021 @default.
- W2043821000 cites W2133851647 @default.
- W2043821000 cites W2137443380 @default.
- W2043821000 cites W2151398149 @default.
- W2043821000 cites W2160544343 @default.
- W2043821000 cites W2318474134 @default.
- W2043821000 cites W2332966505 @default.
- W2043821000 cites W4302387054 @default.
- W2043821000 doi "https://doi.org/10.1021/ma300439k" @default.
- W2043821000 hasPublicationYear "2012" @default.
- W2043821000 type Work @default.
- W2043821000 sameAs 2043821000 @default.
- W2043821000 citedByCount "129" @default.
- W2043821000 countsByYear W20438210002012 @default.
- W2043821000 countsByYear W20438210002013 @default.
- W2043821000 countsByYear W20438210002014 @default.
- W2043821000 countsByYear W20438210002015 @default.
- W2043821000 countsByYear W20438210002016 @default.
- W2043821000 countsByYear W20438210002017 @default.
- W2043821000 countsByYear W20438210002018 @default.
- W2043821000 countsByYear W20438210002019 @default.
- W2043821000 countsByYear W20438210002020 @default.
- W2043821000 countsByYear W20438210002021 @default.
- W2043821000 countsByYear W20438210002022 @default.
- W2043821000 countsByYear W20438210002023 @default.
- W2043821000 crossrefType "journal-article" @default.
- W2043821000 hasAuthorship W2043821000A5013584939 @default.
- W2043821000 hasAuthorship W2043821000A5060034817 @default.
- W2043821000 hasAuthorship W2043821000A5070468488 @default.
- W2043821000 hasAuthorship W2043821000A5091173043 @default.
- W2043821000 hasBestOaLocation W20438210001 @default.
- W2043821000 hasConcept C111368507 @default.
- W2043821000 hasConcept C127313418 @default.
- W2043821000 hasConcept C127413603 @default.
- W2043821000 hasConcept C147597530 @default.
- W2043821000 hasConcept C159467904 @default.
- W2043821000 hasConcept C159985019 @default.
- W2043821000 hasConcept C185592680 @default.
- W2043821000 hasConcept C188027245 @default.
- W2043821000 hasConcept C192562407 @default.