FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2097622001> ?p ?o ?g. }

• W2097622001 endingPage "419" @default.
• W2097622001 startingPage "407" @default.
• W2097622001 abstract "Poly(ethylene glycol)--poly(D,L-lactide) (PEG-PDLLA) block copolymers were prepared by anionic ring-opening polymerization, resulting in block sizes effectively controlled by initial monomer/initiator ratios and low molecular weight distributions (<1.12). A pyrene derivative (1-pyrenyl carbonyl cyanide--Py) was conjugated to the end of the hydrophobic block (PDLLA) in a quantitative manner, with coupling efficiencies >95%. The so-obtained PEG-PDLLA-Py copolymers displayed fluorescent properties that were associated with the pyrene monomers, when placed in good solvents for both the hydrophilic and hydrophobic blocks. When placed in selective solvents, these copolymers self-assembled into micelles in the 30-nm range, also with low particle size distributions (<0.09), within which Py could be readily entrapped in the hydrophobic PDLLA core. Py entrapment resulted in the formation of excimers, as evident from fluorescence measurements. Observation of excimer formation/dissociation further conveyed information on the physicochemical properties of the core. Thermal characterization of these systems showed that an increase in the temperature resulted in changes in the properties of excimer fluorescence, an occurrence attributed to a higher mobility of the otherwise glassy PDLLA. This, in turn, greatly affected the inter-molecular distance between pyrene molecules, a crucial factor for excimer formation. The glass transition of the PDLLA block, approximately 38 degrees C, defined the onset for increasing chain mobility and whence excimer dissociation. Excimer fluorescence appeared to be time-dependent. Based on these observations, chain exchange processes were clearly evidenced through the time-dependent dissociation of excimers into unimers, a process that was influenced by changes in temperature." @default.
• W2097622001 created "2016-06-24" @default.
• W2097622001 creator A5015097923 @default.
• W2097622001 creator A5018982751 @default.
• W2097622001 creator A5057363218 @default.
• W2097622001 creator A5058982278 @default.
• W2097622001 creator A5090213681 @default.
• W2097622001 date "2004-07-01" @default.
• W2097622001 modified "2023-10-03" @default.
• W2097622001 title "Thermal characterization of poly(ethylene glycol)–poly(d,l-lactide) block copolymer micelles based on pyrene excimer formation" @default.
• W2097622001 cites W1967108572 @default.
• W2097622001 cites W1973758133 @default.
• W2097622001 cites W1978914319 @default.
• W2097622001 cites W1979146480 @default.
• W2097622001 cites W1982589292 @default.
• W2097622001 cites W1983408077 @default.
• W2097622001 cites W1993053769 @default.
• W2097622001 cites W1993790948 @default.
• W2097622001 cites W1994036251 @default.
• W2097622001 cites W1998788934 @default.
• W2097622001 cites W2007996033 @default.
• W2097622001 cites W2008243045 @default.
• W2097622001 cites W2013683557 @default.
• W2097622001 cites W2015150662 @default.
• W2097622001 cites W2033644144 @default.
• W2097622001 cites W2056831300 @default.
• W2097622001 cites W2059382700 @default.
• W2097622001 cites W2070633668 @default.
• W2097622001 cites W2078908504 @default.
• W2097622001 cites W2079184456 @default.
• W2097622001 cites W2081459103 @default.
• W2097622001 cites W2082587127 @default.
• W2097622001 cites W2134427544 @default.
• W2097622001 cites W2209147002 @default.
• W2097622001 doi "https://doi.org/10.1016/j.jconrel.2004.02.012" @default.
• W2097622001 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15212873" @default.
• W2097622001 hasPublicationYear "2004" @default.
• W2097622001 type Work @default.
• W2097622001 sameAs 2097622001 @default.
• W2097622001 citedByCount "4" @default.
• W2097622001 countsByYear W20976220012012 @default.
• W2097622001 countsByYear W20976220012015 @default.
• W2097622001 crossrefType "journal-article" @default.
• W2097622001 hasAuthorship W2097622001A5015097923 @default.
• W2097622001 hasAuthorship W2097622001A5018982751 @default.
• W2097622001 hasAuthorship W2097622001A5057363218 @default.
• W2097622001 hasAuthorship W2097622001A5058982278 @default.
• W2097622001 hasAuthorship W2097622001A5090213681 @default.
• W2097622001 hasConcept C102931765 @default.
• W2097622001 hasConcept C11268172 @default.
• W2097622001 hasConcept C121332964 @default.
• W2097622001 hasConcept C15920480 @default.
• W2097622001 hasConcept C166940927 @default.
• W2097622001 hasConcept C178790620 @default.
• W2097622001 hasConcept C184651966 @default.
• W2097622001 hasConcept C185592680 @default.
• W2097622001 hasConcept C188027245 @default.
• W2097622001 hasConcept C2777516009 @default.
• W2097622001 hasConcept C2778951431 @default.
• W2097622001 hasConcept C44228677 @default.
• W2097622001 hasConcept C521977710 @default.
• W2097622001 hasConcept C62520636 @default.
• W2097622001 hasConcept C74561354 @default.
• W2097622001 hasConcept C75473681 @default.
• W2097622001 hasConcept C91881484 @default.
• W2097622001 hasConceptScore W2097622001C102931765 @default.
• W2097622001 hasConceptScore W2097622001C11268172 @default.
• W2097622001 hasConceptScore W2097622001C121332964 @default.
• W2097622001 hasConceptScore W2097622001C15920480 @default.
• W2097622001 hasConceptScore W2097622001C166940927 @default.
• W2097622001 hasConceptScore W2097622001C178790620 @default.
• W2097622001 hasConceptScore W2097622001C184651966 @default.
• W2097622001 hasConceptScore W2097622001C185592680 @default.
• W2097622001 hasConceptScore W2097622001C188027245 @default.
• W2097622001 hasConceptScore W2097622001C2777516009 @default.
• W2097622001 hasConceptScore W2097622001C2778951431 @default.
• W2097622001 hasConceptScore W2097622001C44228677 @default.
• W2097622001 hasConceptScore W2097622001C521977710 @default.
• W2097622001 hasConceptScore W2097622001C62520636 @default.
• W2097622001 hasConceptScore W2097622001C74561354 @default.
• W2097622001 hasConceptScore W2097622001C75473681 @default.
• W2097622001 hasConceptScore W2097622001C91881484 @default.
• W2097622001 hasIssue "3" @default.
• W2097622001 hasLocation W20976220011 @default.
• W2097622001 hasLocation W20976220012 @default.
• W2097622001 hasOpenAccess W2097622001 @default.
• W2097622001 hasPrimaryLocation W20976220011 @default.
• W2097622001 hasRelatedWork W1973318895 @default.
• W2097622001 hasRelatedWork W1975106166 @default.
• W2097622001 hasRelatedWork W2013545878 @default.
• W2097622001 hasRelatedWork W2020451976 @default.
• W2097622001 hasRelatedWork W2022448161 @default.
• W2097622001 hasRelatedWork W2040454943 @default.
• W2097622001 hasRelatedWork W2044723767 @default.
• W2097622001 hasRelatedWork W2081951414 @default.
• W2097622001 hasRelatedWork W4296203745 @default.
• W2097622001 hasRelatedWork W610076687 @default.
• W2097622001 hasVolume "97" @default.

• next