676229-30-4

Basic information

• Product Name: C₄₈H₅₆O₁₂Si₁₀
• Synonyms: C₄₈H₅₆O₁₂Si₁₀
• CAS NO: 676229-30-4
• Molecular Weight: 1105.82
• Mol File: 676229-30-4.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: C₄₈H₅₆O₁₂Si₁₀(CAS DataBase Reference)
• NIST Chemistry Reference: C₄₈H₅₆O₁₂Si₁₀(676229-30-4)
• EPA Substance Registry System: C₄₈H₅₆O₁₂Si₁₀(676229-30-4)

Safety Data

• Hazardous Substances Data: 676229-30-4(Hazardous Substances Data)

Upstream product

• 444315-26-8 1,3,5,7,9,11,14-heptaphenyltricyclo[7.3.3.1(5,11)]heptasiloxane-endo-3,7,14-triol 
• 15933-59-2 1,1,3,3-tetramethyldisilazane 
• 1066-35-9 dimethylmonochlorosilane 

Relevant articles and documents

A Highly Effective Route to Si?O?Si Moieties through O-Silylation of Silanols and Polyhedral Oligomeric Silsesquioxane Silanols with Disilazanes

A simple and highly practical catalyst-free O-silylation of silanols with commercially available disilazanes has been developed under mild conditions. In the case of polyhedral oligomeric silsesquioxane (POSS) silanols and some other silanols, it was necessary to use catalytic amounts of inexpensive Bi(OTf)3 as additional catalyst. This efficient chlorine-free protocol involves the synthesis of a wide range of important organosilicon derivatives such as unsymmetrical disiloxanes and functionalized silsesquioxanes.

SILICON COMPOUND

A large part of conventional organic-inorganic composite materials is obtained by mechanical blending silsesquioxanes with organic polymers, and therefore it has been very difficult to control the structure thereof as the molecular aggregate of the composite materials. An object of the present invention is to provide a novel silicon compound having a living radical polymerization-initiating ability for an addition-polymerizable monomer and a polymer obtained using the same to thereby solve the problem described above regarding the conventional organic-inorganic composite materials. The present inventors have found that a novel silsesquioxane derivative to which a group having an ability to initiate polymerization of a monomer is useful as means for solving the problem described above. That is, the silsesquioxane derivative of the present invention is represented by Formula (1): wherein R1 is hydrogen, alkyl, aryl or arylalkyl; R2 and R3 are alkyl, phenyl or cyclohexyl; and A is a group having an ability to initiate polymerization of a monomer.