Matches in SemOpenAlex for { <https://semopenalex.org/work/W2015554166> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W2015554166 endingPage "194" @default.
- W2015554166 startingPage "185" @default.
- W2015554166 abstract "Abstract The controlled hydrolytic release of phenolic and naphthoic allelopathic compounds from copolymers of acrylic acid (AA), acrylamide (AM) and N-vinylpyrrolidinone with acrylate monomers phenyl acrylate (PA), 2-isopropylphenyl acrylate (IPPA), 2,6-diisopropylphenyl acrylate (DIPPA), 2-acryloxybenzoic acid (2ABA) and 2-acryloxy-1-naphthoic acid (2A1NA) was studied. UV spectroscopy was utilized to monitor the release kinetics of these alleopathic model compounds from well-defined copolymers in (60:40 v/v) aqueous buffer/dioxane solution at five pH conditions. Release behavior of totally soluble copolymers with 2–8 mole % phenolic or naphthoic compound was compared to that of the respective monomers. Hydrolysis rates and extent of hydrolysis depended on the nature of the monomer, comonomer type, copolymer microstructure and pH. Enhanced release rates of 2ABA-AA and 2A1NA-AA polymers were attributed to neighboring group assistance by carboxyl moieties of the pendent allelochemical and polymer chain. Except for 2ABA-AA and 2A1NA-AA, copolymers exhibited a limited extent of hydrolysis dependent upon pH, nature of the monomer and comonomer type. The presence of hydrophobic microdomains in aqueous solutions of these amphiphilic copolymers is likely responsible for the observed behavior. Comparisons of release data from acrylic acid, acrylamide and N-vinylpyrrolidinone copolymers with approximately 40 mole % phenolic ester substitution showed that neighboring ionic groups of PA-AA significantly enhanced release rates. The reduced hydrolysis rates of PA-AM were attributed to a more hydrophobic copolymer microstructure relative to PA-AA." @default.
- W2015554166 created "2016-06-24" @default.
- W2015554166 creator A5053115383 @default.
- W2015554166 creator A5077900622 @default.
- W2015554166 creator A5082831418 @default.
- W2015554166 date "1997-02-17" @default.
- W2015554166 modified "2023-10-17" @default.
- W2015554166 title "Controlled activity polymers. XI Hydrolytic release studies of hydrophilic copolymers with labile esters of model allelopathic phenols" @default.
- W2015554166 cites W1588732072 @default.
- W2015554166 cites W2002526214 @default.
- W2015554166 cites W2005736656 @default.
- W2015554166 doi "https://doi.org/10.1016/s0168-3659(96)01521-0" @default.
- W2015554166 hasPublicationYear "1997" @default.
- W2015554166 type Work @default.
- W2015554166 sameAs 2015554166 @default.
- W2015554166 citedByCount "10" @default.
- W2015554166 countsByYear W20155541662014 @default.
- W2015554166 countsByYear W20155541662015 @default.
- W2015554166 countsByYear W20155541662019 @default.
- W2015554166 countsByYear W20155541662021 @default.
- W2015554166 crossrefType "journal-article" @default.
- W2015554166 hasAuthorship W2015554166A5053115383 @default.
- W2015554166 hasAuthorship W2015554166A5077900622 @default.
- W2015554166 hasAuthorship W2015554166A5082831418 @default.
- W2015554166 hasConcept C100701293 @default.
- W2015554166 hasConcept C15920480 @default.
- W2015554166 hasConcept C178790620 @default.
- W2015554166 hasConcept C185592680 @default.
- W2015554166 hasConcept C2777728882 @default.
- W2015554166 hasConcept C31241831 @default.
- W2015554166 hasConcept C521977710 @default.
- W2015554166 hasConcept C59822182 @default.
- W2015554166 hasConcept C86803240 @default.
- W2015554166 hasConcept C94412978 @default.
- W2015554166 hasConceptScore W2015554166C100701293 @default.
- W2015554166 hasConceptScore W2015554166C15920480 @default.
- W2015554166 hasConceptScore W2015554166C178790620 @default.
- W2015554166 hasConceptScore W2015554166C185592680 @default.
- W2015554166 hasConceptScore W2015554166C2777728882 @default.
- W2015554166 hasConceptScore W2015554166C31241831 @default.
- W2015554166 hasConceptScore W2015554166C521977710 @default.
- W2015554166 hasConceptScore W2015554166C59822182 @default.
- W2015554166 hasConceptScore W2015554166C86803240 @default.
- W2015554166 hasConceptScore W2015554166C94412978 @default.
- W2015554166 hasIssue "2-3" @default.
- W2015554166 hasLocation W20155541661 @default.
- W2015554166 hasOpenAccess W2015554166 @default.
- W2015554166 hasPrimaryLocation W20155541661 @default.
- W2015554166 hasRelatedWork W1637981159 @default.
- W2015554166 hasRelatedWork W2125416072 @default.
- W2015554166 hasRelatedWork W2215682144 @default.
- W2015554166 hasRelatedWork W2258942542 @default.
- W2015554166 hasRelatedWork W2354450231 @default.
- W2015554166 hasRelatedWork W2387327611 @default.
- W2015554166 hasRelatedWork W2464083786 @default.
- W2015554166 hasRelatedWork W2748362258 @default.
- W2015554166 hasRelatedWork W3008729802 @default.
- W2015554166 hasRelatedWork W3145741537 @default.
- W2015554166 hasVolume "44" @default.
- W2015554166 isParatext "false" @default.
- W2015554166 isRetracted "false" @default.
- W2015554166 magId "2015554166" @default.
- W2015554166 workType "article" @default.