Wako Pure Chemical Industries, Inc.

Other

Matsushita Electric Industrial Co., Ltd.

Fuji Photo Film Company, Limited

Japan Science and Technology Agency

Keiji Ohno

Kazufumi Ogawa

Masayuki Endo

Yoshio Inagaki

Shu Kobayashi

Kuniaki Okamoto

Ryo Akiyama

Mamoru Nagoya

The objective is to present compositions obtained by supporting by polymers micro clusters of transition metals and the like that are useful as catalysts in various reactions and, once used, are readily recovered and reused. A polymer-supported metal cluster composition is obtained by supporting a transition metal by a cross-linked polymer, and the polymer-supported cluster composition is characterized by the cross-linked polymer obtained by cross-linking of a cross-linkable polymer containing a hydrophilic side chain and a hydrophobic side chain group having a cross-linkable functional group. This polymer-supported metal cluster composition is, for example, preferably formed by first forming a micelle composed of the metal clusters supported by the cross-linkable polymer in a suitable solution and subsequently subjecting the cross-linkable polymer to a cross-linking reaction. The composition is useful as a catalyst and the like in hydrogenation reactions, dehydrogenation reactions, allylic substitution reactions, oxidation reactions, coupling reactions and carbonylation reactions.

Polymer-supported metal cluster composition

Photosensitive compounds having preferably a functional group such as --SO.sub.2 Cl, --SO.sub.3 H, --SO.sub.3 R, ##STR1## (R, R', R' being alkyl) on a terminal benzene or naphthalene ring connected via a methylene group and ##STR2## moiety are improved in sensitivity to light and thermal stability, and thus useful in a photo resist.

Photosensitive compound

Growing community of inventors

Sakado, Japan

Keiji Ohno