Abstract: A method of predicting an effect of a test chemical on living organisms, which comprises: a step of administering a plurality of chemicals whose effects on living organisms are known, to respective chemical dosed groups, administering a test chemical to a test chemical dosed group, collecting proteins from each group after a definite period of time, separating the proteins by two-dimensional gel electrophoresis, measuring the signal intensities of spots of the proteins and modified proteins formed therefrom, and calculating a signal intensity ratio of at least two spots, and a step of comparing the signal intensity ratio of test chemical dosed group with the signal intensity ratio of each chemical dosed group.

Abstract: A separation material characterized by supporting, in its surface, a linear or crosslinked stimulus responsive polymer to which a substance A having specific affinity for a target substance and a low-molecular substance B having specific affinity for the substance A have been bonded. Such a separation material can increase the recovery of a target substance to be purified and do not require desalting and hapten sugar-eliminating operations and, in addition, have high productivity.

Abstract: A separation material characterized by supporting, in its surface, a linear or crosslinked stimulus responsive polymer to which a substance A having specific affinity for a target substance and a low-molecular substance B having specific affinity for the substance A have been bonded. Such a separation material can increase the recovery of a target substance to be purified and do not require desalting and hapten sugar-eliminating operations and, in addition, have high productivity.

Abstract: A separation material characterized by supporting, in its surface, a linear or crosslinked stimulus responsive polymer to which a substance A having specific affinity for a target substance and a low-molecular substance B having specific affinity for the substance A have been bonded. Such a separation material can increase the recovery of a target substance to be purified and do not require desalting and hapten sugar-eliminating operations and, in addition, have high productivity.

Abstract: A separation material characterized by supporting, in its surface, a linear or crosslinked stimulus responsive polymer to which a substance A having specific affinity for a target substance and a low-molecular substance B having specific affinity for the substance A have been bonded. Such a separation material can increase the recovery of a target substance to be purified and do not require desalting and hapten sugar-eliminating operations and, in addition, have high productivity.

Abstract: A melt-blown, non-woven fabric constituted by extremely fine polyarylene sulfide fibers having an average fiber diameter of 10 &mgr;m or less is stably produced from branched and/or cross-linked polyarylene sulfide having a non-Newtonian coefficient of 1.05-1.20.

Abstract: A simple and convenient process is provided to introduce a sufficient quantity of functional groups to a main chain or terminals of the chain of a polyarylene sulfide resin to improve properties of the resin.The invention provides a process for heat oxidation crosslinking a polyarylene sulfide resin, characterized by conducting the heat oxidation crosslinking reaction in the presence of at least one organic compound having at least one active-hydrogen-containing group or at least one organic compound having at least one active-hydrogen-containing group and a group derived from an active hydrogen containing group by substituting an active hydrogen of the active hydrogen containing group with an alkali metal, to thereby prepare a functional group-containing polyarylene sulfide resin.

Abstract: A polyarylene sulfide in which a ratio of terminal --SX groups to a total of the terminal --SX groups and --SZn-- groups is less than 20 mole %, wherein X represents an alkali metal or a hydrogen atom, and which has a melt viscosity, V.sub.6 of 100 to 2,000 poises.Also disclosed are a composition comprising 100 parts of the above polyarylene sulfide, 0.01 to 20 parts of zeolite and 0.01 to 20 part of silica, and a process for the preparation of the above polyarylene sulfide.

Abstract: A tubular extrusion molding product comprising a high molecular weight polyarylene sulfide having a melt viscosity of from 3,100 poise to 60,000 poise produced by reacting an alkali metal sulfide and a dihaloaromtic compound in the presence of an organic amide solvent, cooling a gaseous phase part in the reaction zone during the reaction thereby condensating at least a part of the gaseous phase and refluxing the resultant condensate to a liquid phase in the reaction zone. A tubular extrusion molding product having further improved impact resistance can be provided by copolymerizing from 0.2 mol % to 1 mol % of a polyhaloaromatic compound to the alkali metal sulfide. A tubular extrusion molding product of improved impact resistance is provided by further applying a heat treatment of the polyarylene sulfide intermediate product thereby increasing the melt viscosity.

Abstract: High molecular weight polyarylene sulfide prepared by reacting an alkali metal sulfide with a dihaloaromatic compound in an organic amide solvent, wherein a gaseous phase part of a reactor is cooled to thereby condense a part of a gaseous phase in the reactor, and the condensed liquid is refluxed to a liquid phase in the reactor. Higher molecular weight is attained by copolymerization with 0.005 to 1.5 mole percent, based on the alkali metal sulfide, of a polyhaloaromatic compound.