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Volumn 811, Issue 1-3, 2007, Pages 255-266

A DFT study of the hydrogen atom abstraction from 2,4,6-trimethylheptane: A model of peroxidic degradation for syndio polypropylene

Author keywords

DFT; H atom abstraction; Kinetic calculations; Polypropylene

Indexed keywords


EID: 34248200492     PISSN: 01661280     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.theochem.2007.03.008     Document Type: Article
Times cited : (13)

References (65)
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    • We used the standard value of 1.4 Å for the radius of the sphere as we did not need absolute values of Connolly surfaces, but only relative ones.
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    • -1); therefore the steric strain cannot account for the difference in activation entropy for H-abstractions on primary carbon atoms.
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    • Data affording the best fits, see Appendices.
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    • 2 for 9, 8, and 5, respectively. Therefore, assuming that the bi-molecular rate reaction depends a lot on the accessibility of the radical centre, self-termination rate constants are expected to increase in the series 5 < 8 < 9.
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    • For the DFT procedure selected, the errors in the trends are likely smaller than the absolute values. Despite the larger errors of the DFT procedure (compared to the G3 procedure, for example), this treatment appears for the present work as quite acceptable to understand the factors governing the studied radical reactivities. For a complete analysis, a more refined treatment must be adapted.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.