Other

Tosoh Corporation

Mitsubishi Kasei Corporation

Masa-aki Kakimoto

Yoshio Imai

Masaru Yoneyama

Masanori Tanaka

Hideaki Sakai

Mitsumasa Iwamoto

Toru Konishi

Taro Hino

Yu Sudo

Masa-aki Suzuki

By using a graft polymer comprising a dendritic polymer with a styrene skeleton and a hydrophilic polymer grafted to a terminal thereof, a temperature-responsive substrate for cell culture having a temperature-responsive surface for cell culture that allows cells to be cultured with high efficiency and which yet allows cultured cells to be exfoliated in a short period of time and with high efficiency by simply changing the temperature of the substrate surface can be prepared conveniently. If this temperature-responsive substrate for cell culture is used, cells obtained from a variety of tissues can be cultured with high efficiency. If this culture method is utilized, cultured cells can be exfoliated intact in a short amount of time with high efficiency. In addition, by using this graft polymer, a wide range of peptides and proteins can also be separated by simply changing the temperature of a chromatographic carrier. This allows for convenient separation procedure and improves the efficiency of separating operations. What is more, the stereoregularity of the dendritic polymer per se may be utilized to enable separation of solutes based on differences in their molecular structures.

Graft polymer, temperature-responsive substrate for cell culture using the same and production method therefor, as well as liquid chromatographic carrier having the novel graft polymer immomibilized thereon and liquid chromatographic method using the same

A process for manufacturing an aromatic polyester resin represented by the general formula: ##STR1## wherein Ar.sup.1 and Ar.sup.2 represent a bivalent aromatic radical and n is an integer of 10 to 100, comprising reacting an aromatic diol represented by the general formula:

Catalytic method for manufacturing aromatic polyester resin from

A film comprised of at least one monomolecular layer composed essentially of a polyimide having repeating units of the formula: ##STR1## wherein R.sup.1 is a tetravalent organic group and R.sup.2 is a bivalent organic group.

Film comprised of at least one monomolecular layer and process for its

A polyamide resin having double bonds in its main chain and containing repeating units represented by the formula (I):

Method for manufacturing polyamide resin from unsaturated bis-amide and

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Yokohama, Japan

Masa-aki Kakimoto