Matches in SemOpenAlex for { <https://semopenalex.org/work/W2002245576> ?p ?o ?g. }
Showing items 1 to 64 of
64
with 100 items per page.
- W2002245576 endingPage "4180" @default.
- W2002245576 startingPage "4175" @default.
- W2002245576 abstract "The polymerization of l-lactide with triethylaluminium and alkylaluminium alkoxides was studied in detail. It was found that commercial triethylaluminium is often contaminated with aluminium ethoxide groups resulting from the rapid oxidation of triethylaluminium. The ethoxide group is a far more reactive initiator than the aluminium-carbon bond. Therefore reactive initiators can be prepared in situ by the reaction of pure triethylaluminium with vitamins, hormones or drugs containing hydroxyl groups. Polymerization of l-lactide with these in situ prepared initiators yields oligo- or poly(l-lactide) with covalently bound vitamins, hormones or drugs. The bioactive co-initiators used in this study were geraniol, stigmasterol, tocopherol, testosterone, pregnenolone, ergocalciferol, cortisone and quinine. It is demonstrated by 13C n.m.r. spectroscopy that the keto groups of steroids do not undergo redox reactions during the polymerization process." @default.
- W2002245576 created "2016-06-24" @default.
- W2002245576 creator A5022047822 @default.
- W2002245576 creator A5091511197 @default.
- W2002245576 date "1994-09-01" @default.
- W2002245576 modified "2023-10-18" @default.
- W2002245576 title "Polylactones: 30. Vitamins, hormones and drugs as co-initiators of AlEt3-initiated polymerizations of lactide" @default.
- W2002245576 cites W1528521708 @default.
- W2002245576 cites W1605684568 @default.
- W2002245576 cites W2016077890 @default.
- W2002245576 cites W2022338317 @default.
- W2002245576 cites W2057866636 @default.
- W2002245576 cites W2107519201 @default.
- W2002245576 cites W2146514052 @default.
- W2002245576 cites W2153648437 @default.
- W2002245576 cites W2169978634 @default.
- W2002245576 cites W4211145658 @default.
- W2002245576 doi "https://doi.org/10.1016/0032-3861(94)90593-2" @default.
- W2002245576 hasPublicationYear "1994" @default.
- W2002245576 type Work @default.
- W2002245576 sameAs 2002245576 @default.
- W2002245576 citedByCount "38" @default.
- W2002245576 countsByYear W20022455762012 @default.
- W2002245576 countsByYear W20022455762015 @default.
- W2002245576 countsByYear W20022455762019 @default.
- W2002245576 countsByYear W20022455762020 @default.
- W2002245576 countsByYear W20022455762021 @default.
- W2002245576 countsByYear W20022455762023 @default.
- W2002245576 crossrefType "journal-article" @default.
- W2002245576 hasAuthorship W2002245576A5022047822 @default.
- W2002245576 hasAuthorship W2002245576A5091511197 @default.
- W2002245576 hasConcept C178790620 @default.
- W2002245576 hasConcept C185592680 @default.
- W2002245576 hasConcept C188027245 @default.
- W2002245576 hasConcept C2776743539 @default.
- W2002245576 hasConcept C44228677 @default.
- W2002245576 hasConcept C521977710 @default.
- W2002245576 hasConceptScore W2002245576C178790620 @default.
- W2002245576 hasConceptScore W2002245576C185592680 @default.
- W2002245576 hasConceptScore W2002245576C188027245 @default.
- W2002245576 hasConceptScore W2002245576C2776743539 @default.
- W2002245576 hasConceptScore W2002245576C44228677 @default.
- W2002245576 hasConceptScore W2002245576C521977710 @default.
- W2002245576 hasIssue "19" @default.
- W2002245576 hasLocation W20022455761 @default.
- W2002245576 hasOpenAccess W2002245576 @default.
- W2002245576 hasPrimaryLocation W20022455761 @default.
- W2002245576 hasRelatedWork W1963816831 @default.
- W2002245576 hasRelatedWork W2015406577 @default.
- W2002245576 hasRelatedWork W2032669911 @default.
- W2002245576 hasRelatedWork W2108663272 @default.
- W2002245576 hasRelatedWork W2322131243 @default.
- W2002245576 hasRelatedWork W2352324095 @default.
- W2002245576 hasRelatedWork W2379447370 @default.
- W2002245576 hasRelatedWork W2693690122 @default.
- W2002245576 hasRelatedWork W3042267200 @default.
- W2002245576 hasRelatedWork W863275437 @default.
- W2002245576 hasVolume "35" @default.
- W2002245576 isParatext "false" @default.
- W2002245576 isRetracted "false" @default.
- W2002245576 magId "2002245576" @default.
- W2002245576 workType "article" @default.