Chisso Corporation

Jnc Corporation

Chisso Petrochemical Corporation

Kohji Ohno

Yoshinobu Tsujii

Takeshi Fukuda

Mikio Yamahiro

Nobumasa Ootake

Hisao Oikawa

Kenichi Watanabe

Kenya Ito

Masami Tanaka

Yasuhiro Yamamoto

Kazuhiro Yoshida

Koji Ohguma

A polymer represented by Formula (7): wherein all variables are defined in the specification, including Pwhich is a polymer chain obtained by polymerizing an addition-polymerizable monomer, which makes it possible to control the structure of the polymer as a molecular aggregate.

Polymer obtained by addition-polymerization initiated by a silicon compound

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 Ris 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 &#x2014;CH&#x2014; may be substituted with &#x2014;O&#x2014;, &#x2014;CH&#x2550;CH&#x2014;, cycloalkylene or cycloalkenylene; in alkylene in this arylalkyl, optional hydrogens may be substituted with fluorine, and optional &#x2014;CH&#x2014; may be substituted with &#x2014;O&#x2014; or &#x2014;CH&#x2550;CH&#x2014;; and Ais a group having an &#x3b1;-haloester group.

Silicon compounds

A production process for a silicon compound represented by Formula (6), characterized by reacting a compound represented by Formula (4) with a compound represented by Formula (5): wherein all of the variables are defined in the specification.

Production process for a 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 Ris hydrogen, alkyl, aryl or arylalkyl; Rand Rare alkyl, phenyl or cyclohexyl; and A is a group having an ability to initiate polymerization of a monomer.

Silicon compound

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), Ris hydrogen, an alkyl, an aryl, or an arylalkyl; Ris an alkyl, phenyl, or cyclohexyl; and A is a group having a polymerization initiating ability for addition polymerizable monomers 

Organosilicon compound

A silicon compound represented by Formula (1). In Formula (1), Ris a group independently selected respectively from the group consisting of a hydrogen atom, alkyl, substituted or non-substituted aryl and substituted or non-substituted arylalkyl, and Ais an organic group substituted with a halogenated sulfonyl group and is preferably a group represented by Formula (2). In Formula (2), X is halogen; Ris alkyl; a is an integer of 0 to 2; and Zis a single bond or alkylene having a carbon number of 1 to 10.  The silicon compound provided by the present invention is a silsesquioxane derivative having an excellent living polymerizable radical polymerization initiating function. For example, it is possible to commence polymerization by allowing an acryl base monomer to coexist to form an acryl base polymer making use of one point of the structure of the silsesquioxane in the present invention as a starting point. Because a halogenated sulfonyl group has a strong electrophilicity, it is possible to synthesize various silsesquioxane derivatives by reacting the silicon compound provided by the present invention with various nucleophilic reagents, and it can actively be used as an intermediate useful for organic synthesis.

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 Ris hydrogen, alkyl, aryl or arylalkyl; Rand Rare alkyl, phenyl or cyclohexyl; and A is a group having an ability to initiate polymerization of a monomer.

Growing community of inventors

Kyoto, Japan

Kohji Ohno