Matches in SemOpenAlex for { <https://semopenalex.org/work/W2039882010> ?p ?o ?g. }
- W2039882010 endingPage "2378" @default.
- W2039882010 startingPage "2369" @default.
- W2039882010 abstract "The biotic and abiotic degradation of poly (L-lactide) (PLLA) has been studied with pyrolysis gas chromatography mass spectrometry (Py-GC-MS). A mixed culture of compost micro-organisms was used as the biotic medium. Size-exclusion chromatography (SEC), gas chromatography-mass spectrometry (GC-MS), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) were utilized to monitor the degradation and degradation mechanism. Differences in pH, molecular weight, surface structure, and degradation mechanisms were noted between sample aged in biotic and abiotic medium. Using fractionated Py-GC-MS at 400 and 500°C, acetaldehyde, acrylic acid, lactoyl acrylic acid, two lactide isomers, and cyclic oligomers up to the pentamer were identified as thermal decomposition products of PLA as well as some other not completely identified products. The ratio of meso-lactide to L-lactide was lower in the sample aged in the biotic media than the abiotic media. This is a result of the preference of the micro-organisms for L-form of lactic acid and lactoyl lactic acid rather than the D-form that in turn influences the formation and the amounts of meso and D,L-lactide during the pyrolysis. Based on SEM micrographs, it was shown that degradation in the biotic medium proceeded mainly via a surface erosion mechanism, whereas bulk erosion was the predominant degradation mechanism in the abiotic medium. The SEC and Py-GC-MS data indicate that degradation was faster in the biotic than in the abiotic sample. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 2369–2378, 2000" @default.
- W2039882010 created "2016-06-24" @default.
- W2039882010 creator A5002052573 @default.
- W2039882010 creator A5002983804 @default.
- W2039882010 creator A5039662194 @default.
- W2039882010 date "2000-01-01" @default.
- W2039882010 modified "2023-10-06" @default.
- W2039882010 title "PY-GC/MS an effective technique to characterizing of degradation mechanism of poly (L-lactide) in the different environment" @default.
- W2039882010 cites W1601916605 @default.
- W2039882010 cites W1930675968 @default.
- W2039882010 cites W1978387141 @default.
- W2039882010 cites W1987125104 @default.
- W2039882010 cites W1988777459 @default.
- W2039882010 cites W2000447088 @default.
- W2039882010 cites W2000999125 @default.
- W2039882010 cites W2018361392 @default.
- W2039882010 cites W2037052203 @default.
- W2039882010 cites W2039277642 @default.
- W2039882010 cites W2048398102 @default.
- W2039882010 cites W2049805949 @default.
- W2039882010 cites W2051101763 @default.
- W2039882010 cites W2057069446 @default.
- W2039882010 cites W2066491610 @default.
- W2039882010 cites W2078640429 @default.
- W2039882010 cites W2081623609 @default.
- W2039882010 cites W2092881292 @default.
- W2039882010 cites W2096904087 @default.
- W2039882010 cites W2097892579 @default.
- W2039882010 cites W2103967550 @default.
- W2039882010 cites W4211108753 @default.
- W2039882010 doi "https://doi.org/10.1002/1097-4628(20001220)78:13<2369::aid-app140>3.0.co;2-n" @default.
- W2039882010 hasPublicationYear "2000" @default.
- W2039882010 type Work @default.
- W2039882010 sameAs 2039882010 @default.
- W2039882010 citedByCount "81" @default.
- W2039882010 countsByYear W20398820102013 @default.
- W2039882010 countsByYear W20398820102014 @default.
- W2039882010 countsByYear W20398820102015 @default.
- W2039882010 countsByYear W20398820102016 @default.
- W2039882010 countsByYear W20398820102017 @default.
- W2039882010 countsByYear W20398820102018 @default.
- W2039882010 countsByYear W20398820102019 @default.
- W2039882010 countsByYear W20398820102020 @default.
- W2039882010 countsByYear W20398820102021 @default.
- W2039882010 countsByYear W20398820102022 @default.
- W2039882010 countsByYear W20398820102023 @default.
- W2039882010 crossrefType "journal-article" @default.
- W2039882010 hasAuthorship W2039882010A5002052573 @default.
- W2039882010 hasAuthorship W2039882010A5002983804 @default.
- W2039882010 hasAuthorship W2039882010A5039662194 @default.
- W2039882010 hasConcept C123460561 @default.
- W2039882010 hasConcept C127413603 @default.
- W2039882010 hasConcept C132215390 @default.
- W2039882010 hasConcept C13965031 @default.
- W2039882010 hasConcept C151730666 @default.
- W2039882010 hasConcept C160892712 @default.
- W2039882010 hasConcept C178790620 @default.
- W2039882010 hasConcept C185592680 @default.
- W2039882010 hasConcept C2775920511 @default.
- W2039882010 hasConcept C2776743539 @default.
- W2039882010 hasConcept C2779679103 @default.
- W2039882010 hasConcept C36759035 @default.
- W2039882010 hasConcept C41008148 @default.
- W2039882010 hasConcept C42360764 @default.
- W2039882010 hasConcept C43617362 @default.
- W2039882010 hasConcept C44228677 @default.
- W2039882010 hasConcept C521977710 @default.
- W2039882010 hasConcept C523546767 @default.
- W2039882010 hasConcept C54355233 @default.
- W2039882010 hasConcept C76155785 @default.
- W2039882010 hasConcept C86803240 @default.
- W2039882010 hasConceptScore W2039882010C123460561 @default.
- W2039882010 hasConceptScore W2039882010C127413603 @default.
- W2039882010 hasConceptScore W2039882010C132215390 @default.
- W2039882010 hasConceptScore W2039882010C13965031 @default.
- W2039882010 hasConceptScore W2039882010C151730666 @default.
- W2039882010 hasConceptScore W2039882010C160892712 @default.
- W2039882010 hasConceptScore W2039882010C178790620 @default.
- W2039882010 hasConceptScore W2039882010C185592680 @default.
- W2039882010 hasConceptScore W2039882010C2775920511 @default.
- W2039882010 hasConceptScore W2039882010C2776743539 @default.
- W2039882010 hasConceptScore W2039882010C2779679103 @default.
- W2039882010 hasConceptScore W2039882010C36759035 @default.
- W2039882010 hasConceptScore W2039882010C41008148 @default.
- W2039882010 hasConceptScore W2039882010C42360764 @default.
- W2039882010 hasConceptScore W2039882010C43617362 @default.
- W2039882010 hasConceptScore W2039882010C44228677 @default.
- W2039882010 hasConceptScore W2039882010C521977710 @default.
- W2039882010 hasConceptScore W2039882010C523546767 @default.
- W2039882010 hasConceptScore W2039882010C54355233 @default.
- W2039882010 hasConceptScore W2039882010C76155785 @default.
- W2039882010 hasConceptScore W2039882010C86803240 @default.
- W2039882010 hasIssue "13" @default.
- W2039882010 hasLocation W20398820101 @default.
- W2039882010 hasOpenAccess W2039882010 @default.
- W2039882010 hasPrimaryLocation W20398820101 @default.
- W2039882010 hasRelatedWork W1965491567 @default.
- W2039882010 hasRelatedWork W1986067640 @default.