𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A molecular orbital study of the dimerization process of vinyl monomers

✍ Scribed by M. A. Mora


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
323 KB
Volume
65
Category
Article
ISSN
0020-7608

No coin nor oath required. For personal study only.

✦ Synopsis


Molecular orbital calculations were carried out for the dimerization step in the polymerization process of vinyl acetate and styrene through free radicals and ionic mechanisms. The calculations were performed for monomers, dimers, their positive and negative ions, and free radicals. The minimum-energy geometry is achieved in all cases, the geometrical and electronic parameters are analyzed, a dimerization reaction pathway is proposed, and the heats of polymerization obtained are in excellent agreement with experimental data.


πŸ“œ SIMILAR VOLUMES


Keto–enol tautomerism and dissociation o
✍ W. Bertrand; G. Bouchoux πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 95 KB πŸ‘ 1 views

Part of the potential energy surface for ionized vinyl alcohol, [CH 2 =CHOH] Á , 1 Á , acetaldehyde, [CH 3 CHO] Á , 2 Á , and hydroxycarbene [CH 3 COH] Á , 3 Á , is calculated at the G2 level of theory. It is confirmed that the latter structure is a stable species (predicted 298K heat of formation =

Spectroscopic studies of the molecular i
✍ Johan Svenson; HΓ₯kan S. Andersson; Sergey A. Piletsky; Ian A. Nicholls πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 54 KB πŸ‘ 1 views

A method for the rapid estimation of the extent of complex formation in molecular imprinting prepolymerization mixtures is described. By the use of a UV spectroscopy titration procedure, apparent binding constants for such self-assembly processes have been obtained. This method was used for comparis