Matches in SemOpenAlex for { <https://semopenalex.org/work/W2015013334> ?p ?o ?g. }
Showing items 1 to 97 of
97
with 100 items per page.
- W2015013334 abstract "The dynamical screening length ${ensuremath{xi}}_{h}$ in semidilute to highly concentrated polymer solutions of poly(methyl methacrylate) in propylene carbonate has been examined using photon correlation spectroscopy and pulsed field gradient nuclear magnetic resonance. A crossover between different concentration dependent regimes, ${ensuremath{xi}}_{h}ensuremath{sim}{ensuremath{varphi}}^{ensuremath{-}ensuremath{alpha}},$ where $ensuremath{alpha}$ is found to be $ensuremath{approx}0.5,$ $ensuremath{approx}1,$ and $ensuremath{approx}2,$ is observed when the local viscosity is taken into account. Here $ensuremath{varphi}$ is the volume fraction of polymer in the solution. Well-defined crossovers between $ensuremath{alpha}=0.5$ and $ensuremath{alpha}=1$ corresponding to a transition from a marginal solvent to a $ensuremath{theta}$ solvent behavior have been predicted to occur due to the reduction of excluded-volume effects between the spatially correlated polymer segments with increasing polymer volume fraction. However, a clear experimental validation of the crossover has never been presented before. The third regime $(ensuremath{alpha}ensuremath{approx}2)$ is observed in the highly concentrated region where the static screening length is comparable to the persistence length of the polymer. The observation indicates that the rigid rod model previously used to describe concentrated solutions is an oversimplification valid only in the very high concentration limit. The obtained results at high concentrations are discussed in the frame of a simple physical model where segments at the persistence length scale are treated as flexible rodlike segments." @default.
- W2015013334 created "2016-06-24" @default.
- W2015013334 creator A5003879710 @default.
- W2015013334 creator A5030327576 @default.
- W2015013334 creator A5059323806 @default.
- W2015013334 creator A5070226002 @default.
- W2015013334 date "2003-11-24" @default.
- W2015013334 modified "2023-09-26" @default.
- W2015013334 title "Power laws in polymer solution dynamics" @default.
- W2015013334 cites W110595496 @default.
- W2015013334 cites W1969249715 @default.
- W2015013334 cites W1970648361 @default.
- W2015013334 cites W1984048831 @default.
- W2015013334 cites W1987786344 @default.
- W2015013334 cites W1992891656 @default.
- W2015013334 cites W1993316914 @default.
- W2015013334 cites W2003054331 @default.
- W2015013334 cites W2003310330 @default.
- W2015013334 cites W2004181966 @default.
- W2015013334 cites W2007776933 @default.
- W2015013334 cites W2015558529 @default.
- W2015013334 cites W2023844045 @default.
- W2015013334 cites W2024507792 @default.
- W2015013334 cites W2025216309 @default.
- W2015013334 cites W2028097992 @default.
- W2015013334 cites W2029344278 @default.
- W2015013334 cites W2036463962 @default.
- W2015013334 cites W2056768938 @default.
- W2015013334 cites W2058590642 @default.
- W2015013334 cites W2068869095 @default.
- W2015013334 cites W2069356218 @default.
- W2015013334 cites W2073901301 @default.
- W2015013334 cites W2077541967 @default.
- W2015013334 cites W2079418716 @default.
- W2015013334 cites W2090193780 @default.
- W2015013334 cites W2102917770 @default.
- W2015013334 cites W2119333174 @default.
- W2015013334 cites W2148866699 @default.
- W2015013334 doi "https://doi.org/10.1103/physreve.68.051803" @default.
- W2015013334 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/14682813" @default.
- W2015013334 hasPublicationYear "2003" @default.
- W2015013334 type Work @default.
- W2015013334 sameAs 2015013334 @default.
- W2015013334 citedByCount "17" @default.
- W2015013334 countsByYear W20150133342013 @default.
- W2015013334 countsByYear W20150133342019 @default.
- W2015013334 crossrefType "journal-article" @default.
- W2015013334 hasAuthorship W2015013334A5003879710 @default.
- W2015013334 hasAuthorship W2015013334A5030327576 @default.
- W2015013334 hasAuthorship W2015013334A5059323806 @default.
- W2015013334 hasAuthorship W2015013334A5070226002 @default.
- W2015013334 hasConcept C11135259 @default.
- W2015013334 hasConcept C111919701 @default.
- W2015013334 hasConcept C121332964 @default.
- W2015013334 hasConcept C192562407 @default.
- W2015013334 hasConcept C26873012 @default.
- W2015013334 hasConcept C2777894999 @default.
- W2015013334 hasConcept C41008148 @default.
- W2015013334 hasConcept C46141821 @default.
- W2015013334 hasConcept C521977710 @default.
- W2015013334 hasConcept C62520636 @default.
- W2015013334 hasConcept C65590680 @default.
- W2015013334 hasConcept C97355855 @default.
- W2015013334 hasConcept C99895341 @default.
- W2015013334 hasConceptScore W2015013334C11135259 @default.
- W2015013334 hasConceptScore W2015013334C111919701 @default.
- W2015013334 hasConceptScore W2015013334C121332964 @default.
- W2015013334 hasConceptScore W2015013334C192562407 @default.
- W2015013334 hasConceptScore W2015013334C26873012 @default.
- W2015013334 hasConceptScore W2015013334C2777894999 @default.
- W2015013334 hasConceptScore W2015013334C41008148 @default.
- W2015013334 hasConceptScore W2015013334C46141821 @default.
- W2015013334 hasConceptScore W2015013334C521977710 @default.
- W2015013334 hasConceptScore W2015013334C62520636 @default.
- W2015013334 hasConceptScore W2015013334C65590680 @default.
- W2015013334 hasConceptScore W2015013334C97355855 @default.
- W2015013334 hasConceptScore W2015013334C99895341 @default.
- W2015013334 hasIssue "5" @default.
- W2015013334 hasLocation W20150133341 @default.
- W2015013334 hasLocation W20150133342 @default.
- W2015013334 hasOpenAccess W2015013334 @default.
- W2015013334 hasPrimaryLocation W20150133341 @default.
- W2015013334 hasRelatedWork W1582262334 @default.
- W2015013334 hasRelatedWork W1987715815 @default.
- W2015013334 hasRelatedWork W2015013334 @default.
- W2015013334 hasRelatedWork W2067983323 @default.
- W2015013334 hasRelatedWork W2082366741 @default.
- W2015013334 hasRelatedWork W2096956746 @default.
- W2015013334 hasRelatedWork W2166216434 @default.
- W2015013334 hasRelatedWork W2606562169 @default.
- W2015013334 hasRelatedWork W3082232923 @default.
- W2015013334 hasRelatedWork W4226239490 @default.
- W2015013334 hasVolume "68" @default.
- W2015013334 isParatext "false" @default.
- W2015013334 isRetracted "false" @default.
- W2015013334 magId "2015013334" @default.
- W2015013334 workType "article" @default.