The Micro-environment of Propagating Radical for Styrene in Bulk Polymerization

The Micro-environment of Propagating Radical for Styrene in Bulk Polymerization

According to J. H. Freed, the dependence of line-width on the motion of β protons having a continuous distribution angle of conformation can be obtained by using a hindered oscillation model, that is T-12=γ2eB2βkT/2ω40I[kT/ω20I sum from n=ijcos(2θie)cos(2θje)mimj+sum from n=ijsin(2θie)sin(2θje)·mimj...

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Veröffentlicht in:中国科学通报：英文版 1993 (12), p.1056-1056
1. Verfasser: 毛友钢 郑莹光 王国斌 沈家骢
Format: Artikel
Sprache:eng
Schlagworte:
absolute
Boltzmann
conformation
constants
friction
inertia
monomer
oscillation
rotation
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Beschreibung
Zusammenfassung:According to J. H. Freed, the dependence of line-width on the motion of β protons having a continuous distribution angle of conformation can be obtained by using a hindered oscillation model, that is T-12=γ2eB2βkT/2ω40I[kT/ω20I sum from n=ijcos(2θie)cos(2θje)mimj+sum from n=ijsin(2θie)sin(2θje)·mimj], （1） where B is a constant; γe, magnetogyric ratio of the electron; β, friction constant; ω0, fiequency of the oscillation; I, the rotation inertia; k, Boltzmann constant; T, absolute
ISSN:2095-9273