Abstract: An object of the present invention is to provide a novel polymer coated metal oxide. A polymer coated metal oxide according to the present invention is characterized in that a polymer has a siloxane skeletal structure. A polymer coated metal oxide manufacturing method according to the present invention is a method of contacting a metal oxide with a solution of a polymer having a siloxane skeletal structure. As a result, a polymer can be bonded to the surface of a metal oxide. Herein, it is preferable that a polymer should have a branching structure. Also, it is preferable that the polymer having the branching structure should be a dendritic polymer. Further, it is preferable that a metal oxide should be glass, silica gel, titanium oxide, barium titanate, indium tin oxide (ITO), aluminum oxide, nickel oxide, iron oxide and the like.

Abstract: The present invention is to provide a liquid crystal monomeric compound where a liquid crystal phase readily appears, which is excellent in alignment control, film-formability, durability, heat-stability and compatibility, and is able to be applied to electro-optical liquid crystal elements and recording elements; and a side-chain liquid crystal polymer compound modified with such a monomeric compound.The liquid crystal monomeric compound is represented by the following formula:CH.sub.2 .dbd.CH--(CH.sub.2).sub.m --R [1]wherein m is an integer of 2 to 20 and R is a group selected from the group consisting of ##STR1## wherein p is 1 or 2, Rf is CF.sub.3 or CF.sub.2 F.sub.5, R.sup.1 is an alkyl group having 3-18 carbon atoms, * means an optically active carbon atom, (A) and (B) each is a group independently selected from the group consisting of ##STR2## which may be substituted with one or more halogen atoms, and X is --O--, --COO--or a direct linkage, and ##STR3## wherein p, Rf, R.sup.

Abstract: Disclosed is a polyamide/polybutadiene/acrylonitrile block copolymer useful in a wide variety of applications, such as an adhesive film, which comprises a polycondensate comprising a polybutadiene/acrylonitrile copolymer having a carboxyl group at each terminal thereof and a polyamide having an aminoaryl group at each terminal, and which is represented by general formula (I) ##STR1## wherein R is a divalent organic group, Ar is a divalent aromatic group, x, y, z, m and n each: represent mean degree of polymerization and are integers in the ranges of x=3 to 7, y=1 to 4, z=5 to 15, n=1 to 30, and nm=2 to 20, respectively.

Abstract: An aromatic polythiazole is produced from a salt of an aromatic diaminodithiol compound and a dicarboxylic acid derivative, by a method comprising the steps of: (a) reacting the aromatic diaminodithiol compound salt with an alkyl halide having a substituted or unsubstituted alkyl group in an alkaline aqueous solvent, so that hydrogen atoms in thiol groups of the aromatic diaminodithiol compound are substituted with the alkyl groups; (b) polymerizing the resulting alkyl group-substituted aromatic diaminodithiol compound with the dicarboxylic acid derivative to form an aromatic polythiazole prepolymer; and (c) heating the aromatic polythiazole prepolymer to cause a thiazole ring closure reaction, thereby producing the aromatic polythiazole. By this method, the amino groups of the aromatic diaminodithiol compound salt are selectively reacted with the dicarboxylic acid derivative.

Abstract: A liquid crystal element comprising opposed substrates, a liquid crystal nipped between said opposed substrates, and an aligning film formed on the surface of at least one of said substrates to effect substantially horizontal alignment of the liquid crystal molecules relative to said surface, which liquid crystal element is characterized by the fact that the molecules forming said aligning film are substantially aligned in themselves.

Abstract: An aromatic polyamide of sufficiently high molecular weight is prepared by reacting a diphenyldiamino compound having a hydroxyl or siloxyl group in each phenyl group and a Si-containing substituent in each amino group, e.g. 2,2-bis(3-trimethylsilylamino-4-trimethylsiloxyphenyl) propane, with an aromatic dicarboxylic acid dihalide in an organic solvent. The polyamide can be converted into a polybenzoxazole by a dehydrating and cyclizing reaction at 100.degree.-500.degree. C.

Abstract: Novel aromatic polyethers excellent in heat resistance and soluble in various organic solvents are obtained by introducing 9,9-biphenylfluorene group, optionally together with another divalent aromatic group, into the structural units of a polyether derived from either diphenyl ketone or diphenyl sulfone.