Abstract: The present invention provides a novel silicon compound represented by Formula (1) having a living radical polymerization initiating ability for addition-polymerizable monomers and a polymer obtained using the same. The above polymer can provide an organic-inorganic composite material having a distinct structure. 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.

Abstract: Provided are: an addition polymer of fluorosilsesquioxane (a) having one addition polymerizable functional group or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group and an addition polymerizable monomer (b); a coating film including the polymer or the copolymer; and an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group and organopolysiloxane (c) having an addition polymerizable functional group, or an addition copolymer of the fluorosilsesquioxane (a) having one addition polymerizable functional group, the organopolysiloxane (c) having an addition polymerizable functional group, and the addition polymerizable monomer (b).

Abstract: The object of the present invention is to provide a new kind of silicon compound having an ester-type organic functional group and a new method for providing a T8-silsesquioxane compound having a hydroxyl group by using said silicon compound as the starting material. A silicon compound represented by formula (1) is obtained through the production process characterized by using a silicon compound represented by formula (2). wherein: in formula (1), each of seven R1 group is independently selected from the group consisting of hydrogen, alkyl, substituted or unsubstituted aryl, and substituted or unsubstituted arylalkyl and A2 is a hydroxyl-terminal organic functional group, and in formula (2), each of R1 group is the same as R1 in formula (1), and A1 is an organic functional group containing an acyloxy group.

Abstract: The present invention provides a silicon compound represented by Formula (1) and a polymer obtained by using the same, and this makes it possible not only to obtain an organic-inorganic composite material having a distinct structure but also to control the structure of the above polymer as a molecular aggregate. wherein R1 is a group independently selected from hydrogen, alkyl having a carbon atom number of 1 to 40, substituted or non-substituted aryl and substituted or non-substituted arylalkyl; in this alkyl having a carbon atom number of 1 to 40, optional hydrogens may be substituted with fluorine, and optional —CH2— may be substituted with —O—, —CH?CH—, cycloalkylene or cycloalkenylene; in alkylene in this arylalkyl, optional hydrogens may be substituted with fluorine, and optional —CH2— may be substituted with —O— or —CH?CH—; and A1 is a group having an ?-haloester bond.

Abstract: The object of the present invention is to provide a new kind of silicon compound having an ester-type organic functional group and a new method for providing a T8-silsesquioxane compound having a hydroxyl group by using said silicon compound as the starting material. A silicon compound represented by formula (1) is obtained through the production process characterized by using a silicon compound represented by formula (2). wherein: in formula (1), each of seven R1 group is independently selected from the group consisting of hydrogen, alkyl, substituted or unsubstituted aryl, and substituted or unsubstituted arylalkyl and A2 is a hydroxyl-terminal organic functional group, and in formula (2), each of R1 group is the same as R1 in formula (1), and A1 is an organic functional group containing an acyloxy group.

Abstract: Since the majority of conventional organic/inorganic composite materials are obtained by mechanical blending of a silsesquioxane and an organic polymer or other means, it was extremely difficult to control the structure of the composite as a molecular agglomerate. In order to solve such a problem, the invention is to provide a silicon compound represented by Formula (1). This novel silicon compound has a living radical polymerization initiating ability for addition polymerizable monomers of a wide range. In Formula (1), R1 is hydrogen, an alkyl, an aryl, or an arylalkyl; R2 is an alkyl, phenyl, or cyclohexyl; and A is a group having a polymerization initiating ability for addition polymerizable monomers.

Abstract: The present invention provides a novel silicon compound represented by Formula (1) having a living radical polymerization initiating ability for addition-polymerizable monomers and a polymer obtained using the same. The above polymer can provide an organic-inorganic composite material having a distinct structure. 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.

Abstract: The object of the present invention is to provide a new kind of silicon compound having an ester-type organic functional group and a new method for providing a T8-silsesquioxane compound having a hydroxyl group by using said silicon compound as the starting material. A silicon compound represented by formula (1) is obtained through the production process characterized by using a silicon compound represented by formula (2). wherein: ?in formula (1), each of seven R1 group is independently selected from the group consisting of hydrogen, alkyl, substituted or unsubstituted aryl, and substituted or unsubstituted arylalkyl and A2 is a hydroxyl-terminal organic functional group, and in formula (2), each of R1 group is the same as R1 in formula (1), and A1 is an organic functional group containing an acyloxy group.

Abstract: (1) An organic silicon compound represented by the following Formula (1): 1

Abstract: A conventional silsesquioxane derivative has the problems that the functional groups are restricted and the chemical structure is not readily controlled and that it is expensive. The present inventors have developed a process for producing a silsesquioxane derivative at a high yield by a simple process in order to solve such problems. The novel silsesquioxane derivative according to the present invention is controlled in a structure thereof and has a functional group, which is excellent in reactivity with a target compound, to be modified. The present invention relates to a production process for a silsesquioxane derivative represented by Formula (2), characterized by using a silicon compound represented by Formula (1).