Matches in SemOpenAlex for { <https://semopenalex.org/work/W2162234766> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W2162234766 endingPage "547" @default.
- W2162234766 startingPage "542" @default.
- W2162234766 abstract "The effects of polymer composition and penetrant molecular size on the solubility and diffusivity of alcohol vapors in a series of well characterized isoprene-methyl methacrylate copolymers and their corresponding homopolymers has been investigated at room temperature. The rate of sorption behavior changes progressively from Fickian to non-Fickian, to Case II to “Super Case II” transport with increasing methyl methacrylate (MMA) content in the polymers. The equilibrium solubility of the alcohols increases linearly with increasing penetrant molecular size for polymers which are above their glass transition temperature and decreases for polymers which are below their Tg. The solubility also initially increases as an approximately linear function of MMA content in the copolymers. At about 55 mole percent MMA, the sorbed concentration either levels off or passes through a maximum depending on the size of the penetrant. The apparent “diffusion coefficients” (D) decrease with increasing molecular volume of the penetrants. An exponential dependence was found between these two variables for PMMA. These “diffusion coefficients” also decrease exponentially with increasing MMA content in these polymers. However, at 55 mole percent MMA the copolymer undergoes a rubber to glass transition at the temperature of the experiments. On this basis, it is suggested that the hindered chain segmental motion contributes to the sorption process in addition to strictly thermodynamic considerations. Free volume theory can be used to explain the mechanism of diffusion through the rubbery polymers while the “hole” theory can be applied to explain the transport of the penetrants through the glassy polymers." @default.
- W2162234766 created "2016-06-24" @default.
- W2162234766 creator A5041405034 @default.
- W2162234766 creator A5081905505 @default.
- W2162234766 date "1981-06-01" @default.
- W2162234766 modified "2023-10-18" @default.
- W2162234766 title "Sorption and diffusion of alcohols in amorphous polymers" @default.
- W2162234766 cites W1968268700 @default.
- W2162234766 cites W1978937016 @default.
- W2162234766 cites W1986085013 @default.
- W2162234766 cites W2022285050 @default.
- W2162234766 cites W4244259109 @default.
- W2162234766 doi "https://doi.org/10.1002/pen.760210906" @default.
- W2162234766 hasPublicationYear "1981" @default.
- W2162234766 type Work @default.
- W2162234766 sameAs 2162234766 @default.
- W2162234766 citedByCount "21" @default.
- W2162234766 countsByYear W21622347662019 @default.
- W2162234766 crossrefType "journal-article" @default.
- W2162234766 hasAuthorship W2162234766A5041405034 @default.
- W2162234766 hasAuthorship W2162234766A5081905505 @default.
- W2162234766 hasConcept C121332964 @default.
- W2162234766 hasConcept C122865956 @default.
- W2162234766 hasConcept C127413603 @default.
- W2162234766 hasConcept C132050475 @default.
- W2162234766 hasConcept C147789679 @default.
- W2162234766 hasConcept C150394285 @default.
- W2162234766 hasConcept C155574463 @default.
- W2162234766 hasConcept C15920480 @default.
- W2162234766 hasConcept C159985019 @default.
- W2162234766 hasConcept C178790620 @default.
- W2162234766 hasConcept C185592680 @default.
- W2162234766 hasConcept C188027245 @default.
- W2162234766 hasConcept C192562407 @default.
- W2162234766 hasConcept C206175624 @default.
- W2162234766 hasConcept C2777935641 @default.
- W2162234766 hasConcept C2779335537 @default.
- W2162234766 hasConcept C37668627 @default.
- W2162234766 hasConcept C42360764 @default.
- W2162234766 hasConcept C521977710 @default.
- W2162234766 hasConcept C53403541 @default.
- W2162234766 hasConcept C56052488 @default.
- W2162234766 hasConcept C58445606 @default.
- W2162234766 hasConcept C69357855 @default.
- W2162234766 hasConcept C97355855 @default.
- W2162234766 hasConceptScore W2162234766C121332964 @default.
- W2162234766 hasConceptScore W2162234766C122865956 @default.
- W2162234766 hasConceptScore W2162234766C127413603 @default.
- W2162234766 hasConceptScore W2162234766C132050475 @default.
- W2162234766 hasConceptScore W2162234766C147789679 @default.
- W2162234766 hasConceptScore W2162234766C150394285 @default.
- W2162234766 hasConceptScore W2162234766C155574463 @default.
- W2162234766 hasConceptScore W2162234766C15920480 @default.
- W2162234766 hasConceptScore W2162234766C159985019 @default.
- W2162234766 hasConceptScore W2162234766C178790620 @default.
- W2162234766 hasConceptScore W2162234766C185592680 @default.
- W2162234766 hasConceptScore W2162234766C188027245 @default.
- W2162234766 hasConceptScore W2162234766C192562407 @default.
- W2162234766 hasConceptScore W2162234766C206175624 @default.
- W2162234766 hasConceptScore W2162234766C2777935641 @default.
- W2162234766 hasConceptScore W2162234766C2779335537 @default.
- W2162234766 hasConceptScore W2162234766C37668627 @default.
- W2162234766 hasConceptScore W2162234766C42360764 @default.
- W2162234766 hasConceptScore W2162234766C521977710 @default.
- W2162234766 hasConceptScore W2162234766C53403541 @default.
- W2162234766 hasConceptScore W2162234766C56052488 @default.
- W2162234766 hasConceptScore W2162234766C58445606 @default.
- W2162234766 hasConceptScore W2162234766C69357855 @default.
- W2162234766 hasConceptScore W2162234766C97355855 @default.
- W2162234766 hasIssue "9" @default.
- W2162234766 hasLocation W21622347661 @default.
- W2162234766 hasOpenAccess W2162234766 @default.
- W2162234766 hasPrimaryLocation W21622347661 @default.
- W2162234766 hasRelatedWork W1801690113 @default.
- W2162234766 hasRelatedWork W1978444047 @default.
- W2162234766 hasRelatedWork W2001241986 @default.
- W2162234766 hasRelatedWork W2023405437 @default.
- W2162234766 hasRelatedWork W2032174902 @default.
- W2162234766 hasRelatedWork W2047337685 @default.
- W2162234766 hasRelatedWork W2104843554 @default.
- W2162234766 hasRelatedWork W2354509845 @default.
- W2162234766 hasRelatedWork W2469676648 @default.
- W2162234766 hasRelatedWork W2774865628 @default.
- W2162234766 hasVolume "21" @default.
- W2162234766 isParatext "false" @default.
- W2162234766 isRetracted "false" @default.
- W2162234766 magId "2162234766" @default.
- W2162234766 workType "article" @default.