Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023879969> ?p ?o ?g. }
Showing items 1 to 82 of
82
with 100 items per page.
- W2023879969 endingPage "471" @default.
- W2023879969 startingPage "463" @default.
- W2023879969 abstract "A copolymer of 2-hydroxyethyl methacrylate (HEMA) with 2-ethoxy ethyl methacrylate (EEMA) was synthesized and the molecular mobility, free volume, and density properties examined as a function of composition. These properties were correlated with the equilibrium water uptake in order to determine which of the properties were most influential in causing high water sorption, as these materials are suitable candidates for hydrogel systems. It was found that the polar HEMA repeat unit results in a rigid, glassy sample at room temperature due to the high degree of hydrogen bonding between chains whereas high EEMA content leads to rubbery samples with subambient glass transition temperatures. The free volume properties on the molecular scale measured by positron annihilation lifetime spectroscopy (PALS) showed that higher HEMA content led to smaller, fewer holes and a lower free volume fraction than EEMA. Therefore the high water uptake of HEEMA-containing copolymers is largely related to the high polarity of the HEMA unit compared to EEMA, despite the low content of free volume into which the water can initially diffuse. Trends in density with copolymer composition, as measured on a macroscopic level, differs to that seen by PALS and indicates that the two techniques are measuring different scales of packing. © 1998 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 36: 463–471, 1998" @default.
- W2023879969 created "2016-06-24" @default.
- W2023879969 creator A5000851503 @default.
- W2023879969 creator A5014423314 @default.
- W2023879969 creator A5016555639 @default.
- W2023879969 creator A5017902199 @default.
- W2023879969 creator A5039274050 @default.
- W2023879969 date "1998-02-01" @default.
- W2023879969 modified "2023-10-11" @default.
- W2023879969 title "Free volume and water uptake in a copolymer hydrogel series" @default.
- W2023879969 doi "https://doi.org/10.1002/(sici)1099-0488(199802)36:3<463::aid-polb9>3.0.co;2-s" @default.
- W2023879969 hasPublicationYear "1998" @default.
- W2023879969 type Work @default.
- W2023879969 sameAs 2023879969 @default.
- W2023879969 citedByCount "27" @default.
- W2023879969 countsByYear W20238799692012 @default.
- W2023879969 countsByYear W20238799692014 @default.
- W2023879969 countsByYear W20238799692016 @default.
- W2023879969 countsByYear W20238799692018 @default.
- W2023879969 countsByYear W20238799692021 @default.
- W2023879969 countsByYear W20238799692022 @default.
- W2023879969 crossrefType "journal-article" @default.
- W2023879969 hasAuthorship W2023879969A5000851503 @default.
- W2023879969 hasAuthorship W2023879969A5014423314 @default.
- W2023879969 hasAuthorship W2023879969A5016555639 @default.
- W2023879969 hasAuthorship W2023879969A5017902199 @default.
- W2023879969 hasAuthorship W2023879969A5039274050 @default.
- W2023879969 hasConcept C121332964 @default.
- W2023879969 hasConcept C122865956 @default.
- W2023879969 hasConcept C127413603 @default.
- W2023879969 hasConcept C132050475 @default.
- W2023879969 hasConcept C147120987 @default.
- W2023879969 hasConcept C15920480 @default.
- W2023879969 hasConcept C159985019 @default.
- W2023879969 hasConcept C188027245 @default.
- W2023879969 hasConcept C192562407 @default.
- W2023879969 hasConcept C202100949 @default.
- W2023879969 hasConcept C20556612 @default.
- W2023879969 hasConcept C2985595821 @default.
- W2023879969 hasConcept C42360764 @default.
- W2023879969 hasConcept C521977710 @default.
- W2023879969 hasConcept C62520636 @default.
- W2023879969 hasConcept C65590680 @default.
- W2023879969 hasConcept C97355855 @default.
- W2023879969 hasConceptScore W2023879969C121332964 @default.
- W2023879969 hasConceptScore W2023879969C122865956 @default.
- W2023879969 hasConceptScore W2023879969C127413603 @default.
- W2023879969 hasConceptScore W2023879969C132050475 @default.
- W2023879969 hasConceptScore W2023879969C147120987 @default.
- W2023879969 hasConceptScore W2023879969C15920480 @default.
- W2023879969 hasConceptScore W2023879969C159985019 @default.
- W2023879969 hasConceptScore W2023879969C188027245 @default.
- W2023879969 hasConceptScore W2023879969C192562407 @default.
- W2023879969 hasConceptScore W2023879969C202100949 @default.
- W2023879969 hasConceptScore W2023879969C20556612 @default.
- W2023879969 hasConceptScore W2023879969C2985595821 @default.
- W2023879969 hasConceptScore W2023879969C42360764 @default.
- W2023879969 hasConceptScore W2023879969C521977710 @default.
- W2023879969 hasConceptScore W2023879969C62520636 @default.
- W2023879969 hasConceptScore W2023879969C65590680 @default.
- W2023879969 hasConceptScore W2023879969C97355855 @default.
- W2023879969 hasIssue "3" @default.
- W2023879969 hasLocation W20238799691 @default.
- W2023879969 hasOpenAccess W2023879969 @default.
- W2023879969 hasPrimaryLocation W20238799691 @default.
- W2023879969 hasRelatedWork W1546571578 @default.
- W2023879969 hasRelatedWork W1969748211 @default.
- W2023879969 hasRelatedWork W2004792447 @default.
- W2023879969 hasRelatedWork W2044267833 @default.
- W2023879969 hasRelatedWork W2262234515 @default.
- W2023879969 hasRelatedWork W2357580590 @default.
- W2023879969 hasRelatedWork W2371734928 @default.
- W2023879969 hasRelatedWork W2385702977 @default.
- W2023879969 hasRelatedWork W2389328514 @default.
- W2023879969 hasRelatedWork W3145455338 @default.
- W2023879969 hasVolume "36" @default.
- W2023879969 isParatext "false" @default.
- W2023879969 isRetracted "false" @default.
- W2023879969 magId "2023879969" @default.
- W2023879969 workType "article" @default.