Organic derivatives of layered polysilicates III. Reaction of magadiite and kenyaite with allydimethylchlorosilane

Abstract Organic derivatives of layered polysilicate Na-magadiite (Na 2 Si 14 O 29 · x H 2 O) and K-kenyaite (K 2 Si 20 O 41 · x H 2 O) were synthesized by by the reaction of the alkyltrimethylammonium-polysilicate intercalation compounds with allyldimethylchlorosilane as the silylating reagent. A part of silanol groups on the SiO 2 layer was silylated and furthermore the allyl groups were eliminated during the reaction to form Si(CH 3 ) 2 OH groups.