FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2159937808> ?p ?o ?g. }

• W2159937808 endingPage "285" @default.
• W2159937808 startingPage "273" @default.
• W2159937808 abstract "With the aim of increasing flexibility in controlling release from microcapsules, mixtures of wall polymers varying in porosity were investigated by phase separation. Eudragit RL and RS (polymethylmethacrylate linear backbone polymers) mixtures differing in polar substituent content and porosity were used as the wall material and were deposited using a non-solvent addition method. Release rates increased with polar group content of the mixtures, using theophylline, potassium dichromate or sodium chloride as model core materials. Theophylline release rate had the same relationship to polar group content as found earlier for urea permeation of cast mixed-polymer films. Release was generally accelerated in these systems when the external medium contained sodium lauryl sulphate as a wetting agent but not consistently, decreasing unexpectedly for RL-theophylline microcapsules. Localized dissolution of core substance was visible microscopically during release from single microcapsules. The release rate was sensitive to agitation intensity only at low wall to core ratios. Temperature change revealed only a single release mechanism for sodium chloride by Arrhenius equation treatment. Buffer ions penetrated coatings readily, changing theophylline release rates and providing clear evidence of diffusion via a pore-capillary mechanism." @default.
• W2159937808 created "2016-06-24" @default.
• W2159937808 creator A5044592411 @default.
• W2159937808 creator A5075335478 @default.
• W2159937808 creator A5081100822 @default.
• W2159937808 date "1995-01-01" @default.
• W2159937808 modified "2023-09-23" @default.
• W2159937808 title "Gradation of microcapsule wall porosity by deposition of polymer mixtures (Eudragit RL and Eudragit RS). Phase separation of polymer mixtures and effects of external media and conditions on release" @default.
• W2159937808 cites W1964262722 @default.
• W2159937808 cites W1968268700 @default.
• W2159937808 cites W1971546255 @default.
• W2159937808 cites W1971907849 @default.
• W2159937808 cites W1981212415 @default.
• W2159937808 cites W1987056578 @default.
• W2159937808 cites W1992882996 @default.
• W2159937808 cites W1998904173 @default.
• W2159937808 cites W2000015941 @default.
• W2159937808 cites W2010051789 @default.
• W2159937808 cites W2014259987 @default.
• W2159937808 cites W2023651667 @default.
• W2159937808 cites W2036678453 @default.
• W2159937808 cites W2037007776 @default.
• W2159937808 cites W2039022657 @default.
• W2159937808 cites W2049309680 @default.
• W2159937808 cites W2051556368 @default.
• W2159937808 cites W2061876076 @default.
• W2159937808 cites W2077592173 @default.
• W2159937808 cites W2088551040 @default.
• W2159937808 cites W2093472974 @default.
• W2159937808 cites W2111655733 @default.
• W2159937808 cites W2116496222 @default.
• W2159937808 cites W2132240912 @default.
• W2159937808 cites W2137880982 @default.
• W2159937808 cites W2147300912 @default.
• W2159937808 cites W2160072836 @default.
• W2159937808 cites W4242998459 @default.
• W2159937808 cites W4245139413 @default.
• W2159937808 cites W52339015 @default.
• W2159937808 doi "https://doi.org/10.3109/02652049509010296" @default.
• W2159937808 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/7650592" @default.
• W2159937808 hasPublicationYear "1995" @default.
• W2159937808 type Work @default.
• W2159937808 sameAs 2159937808 @default.
• W2159937808 citedByCount "3" @default.
• W2159937808 countsByYear W21599378082015 @default.
• W2159937808 countsByYear W21599378082020 @default.
• W2159937808 crossrefType "journal-article" @default.
• W2159937808 hasAuthorship W2159937808A5044592411 @default.
• W2159937808 hasAuthorship W2159937808A5075335478 @default.
• W2159937808 hasAuthorship W2159937808A5081100822 @default.
• W2159937808 hasConcept C127413603 @default.
• W2159937808 hasConcept C13965031 @default.
• W2159937808 hasConcept C159985019 @default.
• W2159937808 hasConcept C175804951 @default.
• W2159937808 hasConcept C185592680 @default.
• W2159937808 hasConcept C191897082 @default.
• W2159937808 hasConcept C192562407 @default.
• W2159937808 hasConcept C2776741139 @default.
• W2159937808 hasConcept C2909111407 @default.
• W2159937808 hasConcept C41625074 @default.
• W2159937808 hasConcept C42360764 @default.
• W2159937808 hasConcept C43617362 @default.
• W2159937808 hasConcept C50670333 @default.
• W2159937808 hasConcept C519063684 @default.
• W2159937808 hasConcept C521977710 @default.
• W2159937808 hasConcept C55493867 @default.
• W2159937808 hasConcept C6556556 @default.
• W2159937808 hasConcept C6648577 @default.
• W2159937808 hasConcept C88380143 @default.
• W2159937808 hasConceptScore W2159937808C127413603 @default.
• W2159937808 hasConceptScore W2159937808C13965031 @default.
• W2159937808 hasConceptScore W2159937808C159985019 @default.
• W2159937808 hasConceptScore W2159937808C175804951 @default.
• W2159937808 hasConceptScore W2159937808C185592680 @default.
• W2159937808 hasConceptScore W2159937808C191897082 @default.
• W2159937808 hasConceptScore W2159937808C192562407 @default.
• W2159937808 hasConceptScore W2159937808C2776741139 @default.
• W2159937808 hasConceptScore W2159937808C2909111407 @default.
• W2159937808 hasConceptScore W2159937808C41625074 @default.
• W2159937808 hasConceptScore W2159937808C42360764 @default.
• W2159937808 hasConceptScore W2159937808C43617362 @default.
• W2159937808 hasConceptScore W2159937808C50670333 @default.
• W2159937808 hasConceptScore W2159937808C519063684 @default.
• W2159937808 hasConceptScore W2159937808C521977710 @default.
• W2159937808 hasConceptScore W2159937808C55493867 @default.
• W2159937808 hasConceptScore W2159937808C6556556 @default.
• W2159937808 hasConceptScore W2159937808C6648577 @default.
• W2159937808 hasConceptScore W2159937808C88380143 @default.
• W2159937808 hasIssue "3" @default.
• W2159937808 hasLocation W21599378081 @default.
• W2159937808 hasLocation W21599378082 @default.
• W2159937808 hasOpenAccess W2159937808 @default.
• W2159937808 hasPrimaryLocation W21599378081 @default.
• W2159937808 hasRelatedWork W151703272 @default.
• W2159937808 hasRelatedWork W1974032699 @default.
• W2159937808 hasRelatedWork W2038591869 @default.
• W2159937808 hasRelatedWork W2089212046 @default.
• W2159937808 hasRelatedWork W2183895842 @default.

• next