Matches in SemOpenAlex for { <https://semopenalex.org/work/W2076286801> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W2076286801 endingPage "435" @default.
- W2076286801 startingPage "431" @default.
- W2076286801 abstract "Relative yields, migration characteristics, and decay mechanisms are described for various alkyl radicals produced by gammas in crystalline alkanes. ESR measurements at low power levels (<10microW) were made on single crystals of n-eicosane (n-C20H42) which were irradiated with gammas at 77 K. The relative concentrations of the three possible types of alkyl radicals were examined, first at 77 K and then after warming the crystals to various temperatures for several time intervals and cooling them to 77 K for measurement. Also the relative radical concentrations were measured at room temperature as a function of time for several days. Following are the two principal results: 1. The alkyl radicals found in samples with an absorbed dose of 250 krad were almost entirely of the interior type (-CH2CHCH2-). Samples given higher doses showed an increasing concentration of the penultimate (-CHCH3). The primary terminal radical (-CH2CH2CH2) was not observed. 2. There was a slow conversion of the interior alkyl radical to the penultimate form particularly at higher temperatures. These results were used as the basis for explaining the apparent contradictions between Gillbro and Lund, (1) and Kimura et al(2) regarding the relative yields of the penultimate and interior radicals in irradiated eicosane. In agreement with Kimura et al., the results suggest that the fracture of C-H bonds in irradiated eicosane favors the yield of the interior secondary alkyl radical far more than is to be expected from a random fracture pattern. The results of the ESR studies also demonstrate that the intramolecular migration of the alkyl radical site is more rapid than intermolecular migration. This confirms the conclusions of Hama et al.(3) obtained by studies on alkane diols but conflicts with conclusions of Shimada et al.(4) on irradiated urea-polyethylene samples." @default.
- W2076286801 created "2016-06-24" @default.
- W2076286801 creator A5033697578 @default.
- W2076286801 creator A5058156788 @default.
- W2076286801 date "1980-01-01" @default.
- W2076286801 modified "2023-09-27" @default.
- W2076286801 title "Fracture patterns and alkyl radical yields in irradiated crystalline alkanes" @default.
- W2076286801 cites W1974697542 @default.
- W2076286801 cites W1978807999 @default.
- W2076286801 cites W1986344507 @default.
- W2076286801 cites W1999640504 @default.
- W2076286801 cites W2004719493 @default.
- W2076286801 cites W2029450918 @default.
- W2076286801 cites W2036585073 @default.
- W2076286801 cites W2047223341 @default.
- W2076286801 cites W2054707968 @default.
- W2076286801 cites W2059873334 @default.
- W2076286801 cites W2060104738 @default.
- W2076286801 cites W2081763678 @default.
- W2076286801 doi "https://doi.org/10.1016/0146-5724(80)90187-9" @default.
- W2076286801 hasPublicationYear "1980" @default.
- W2076286801 type Work @default.
- W2076286801 sameAs 2076286801 @default.
- W2076286801 citedByCount "3" @default.
- W2076286801 crossrefType "journal-article" @default.
- W2076286801 hasAuthorship W2076286801A5033697578 @default.
- W2076286801 hasAuthorship W2076286801A5058156788 @default.
- W2076286801 hasConcept C111337013 @default.
- W2076286801 hasConcept C121332964 @default.
- W2076286801 hasConcept C134121241 @default.
- W2076286801 hasConcept C139066938 @default.
- W2076286801 hasConcept C159985019 @default.
- W2076286801 hasConcept C178790620 @default.
- W2076286801 hasConcept C185544564 @default.
- W2076286801 hasConcept C185592680 @default.
- W2076286801 hasConcept C192562407 @default.
- W2076286801 hasConcept C2780263894 @default.
- W2076286801 hasConcept C75079739 @default.
- W2076286801 hasConcept C75473681 @default.
- W2076286801 hasConceptScore W2076286801C111337013 @default.
- W2076286801 hasConceptScore W2076286801C121332964 @default.
- W2076286801 hasConceptScore W2076286801C134121241 @default.
- W2076286801 hasConceptScore W2076286801C139066938 @default.
- W2076286801 hasConceptScore W2076286801C159985019 @default.
- W2076286801 hasConceptScore W2076286801C178790620 @default.
- W2076286801 hasConceptScore W2076286801C185544564 @default.
- W2076286801 hasConceptScore W2076286801C185592680 @default.
- W2076286801 hasConceptScore W2076286801C192562407 @default.
- W2076286801 hasConceptScore W2076286801C2780263894 @default.
- W2076286801 hasConceptScore W2076286801C75079739 @default.
- W2076286801 hasConceptScore W2076286801C75473681 @default.
- W2076286801 hasIssue "6" @default.
- W2076286801 hasLocation W20762868011 @default.
- W2076286801 hasOpenAccess W2076286801 @default.
- W2076286801 hasPrimaryLocation W20762868011 @default.
- W2076286801 hasRelatedWork W1965466195 @default.
- W2076286801 hasRelatedWork W2039819439 @default.
- W2076286801 hasRelatedWork W2050572784 @default.
- W2076286801 hasRelatedWork W2063698644 @default.
- W2076286801 hasRelatedWork W2088260707 @default.
- W2076286801 hasRelatedWork W2157291508 @default.
- W2076286801 hasRelatedWork W2951609692 @default.
- W2076286801 hasRelatedWork W2952135986 @default.
- W2076286801 hasRelatedWork W2952655335 @default.
- W2076286801 hasRelatedWork W4220929111 @default.
- W2076286801 hasVolume "16" @default.
- W2076286801 isParatext "false" @default.
- W2076286801 isRetracted "false" @default.
- W2076286801 magId "2076286801" @default.
- W2076286801 workType "article" @default.