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Colloids and Surfaces | 1990

Solid State NMR Studies of Precipitated and Pyrogenic Silicas

Alain Tuel; H. Hommel; A.P. Legrand; Yvonick Chevallier; Jean Claude Morawski

Abstract A detailed study of 29 Si NMR of different silicas and the quantitative relationships that can be derived from the 29 Si spectra are discussed. Special emphasis is placed on the difference of chemical shift observed between CP/MAS and simple MAS spectra. Effects of a thermal treatment on 29 Si NMR features are also discussed.


Archive | 1985

Precipitated silica having improved morphological characteristics and process for the production thereof

Yvonick Chevallier; Jean-Claude Morawski


Archive | 1992

Dispersible silica particulates

Yvonick Chevallier; Michel Rabeyrin


Archive | 1987

Silica with a high oil absorption capability and a controlled primary structure and process for the production thereof

Yvonick Chevallier


Archive | 1985

Precipitated silica with morphological properties, process for producing it and its application, especially as a filler

Yvonick Chevallier; Jean-Claude Morawski


Archive | 1989

Silica reinforced elastomers

Francis Bomo; Yvonick Chevallier; Patrick Lamy; Jean-Claude Morawski


Archive | 1987

PRODUCTION OF SILICA COLLOIDS

Yvonick Chevallier


Archive | 1990

Silica beads, process for their preparation and their use for reinforcing elastomers

Yvonick Chevallier


Archive | 1995

Dispersible silica particulates and reinforcement of elastomer/rubber matrices therewith

Yvonick Chevallier; Michel Rabeyrin


Archive | 1990

Process for the production of a silica colloid

Yvonick Chevallier

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