The present invention relates to a process for preparing a polyaryl ether by reacting components (a1) and (a2) in the presence of a carbonate compound (C) to obtain a salt-containing polymer (SP) comprising the polyaryl ether and a salt (S). After the reaction, the salt (S) is extracted from the salt-containing polymer (SP) to obtain a desalinated polymer (DP) comprising the polyaryl ether.

The present invention relates to a process for preparing a polyaryl ether by reacting components (a1) and (a2) in the presence of a carbonate compound (C) to obtain a salt-containing polymer (SP) comprising the polyaryl ether and a salt (S). After the reaction, the salt (S) is extracted from the salt-containing polymer (SP) to obtain a desalinated polymer (DP) comprising the polyaryl ether.

A method of carrying out a metathesis reaction includes the combination of at least one alkene or non conjugated diene with a Ruthenium-based catalyst with an cyclic(alkyl)(amino)carbene ligand to form a reaction mixture and heating the reaction mixture to a temperature of 100 C. or greater. The reaction can be an ADMET, ROMP, a metathesis ring-closure or an olefin exchange reaction.

A method of carrying out a metathesis reaction includes the combination of at least one alkene or non conjugated diene with a Ruthenium-based catalyst with an cyclic(alkyl)(amino)carbene ligand to form a reaction mixture and heating the reaction mixture to a temperature of 100 C. or greater. The reaction can be an ADMET, ROMP, a metathesis ring-closure or an olefin exchange reaction.

The present invention provides a continuous polymerization apparatus capable of simply and efficiently separating a polymer and solid matter from a reaction mixture while having an apparatus configuration conducive to washing and maintenance, and a continuous production method for a polymer. A continuous polymerization apparatus (100) includes a plurality of reaction vessels (1a to 1c), wherein the plurality of reaction vessels are configured such that reaction mixtures (9a to 9c) successively move through each reaction vessel; in the plurality of reaction vessels, gas phase parts formed above the reaction mixture communicate with one another; and the continuous polymerization apparatus includes a washing part (5), the washing part configured to separate a solid included in the reaction mixture by sedimentation and to perform countercurrent washing.

The present invention provides a continuous polymerization apparatus capable of simply and efficiently separating a polymer and solid matter from a reaction mixture while having an apparatus configuration conducive to washing and maintenance, and a continuous production method for a polymer. A continuous polymerization apparatus (100) includes a plurality of reaction vessels (1a to 1c), wherein the plurality of reaction vessels are configured such that reaction mixtures (9a to 9c) successively move through each reaction vessel; in the plurality of reaction vessels, gas phase parts formed above the reaction mixture communicate with one another; and the continuous polymerization apparatus includes a washing part (5), the washing part configured to separate a solid included in the reaction mixture by sedimentation and to perform countercurrent washing.

To provide a continuous production apparatus and a continuous production method for an aromatic polymer which enable resource conservation, energy conservation, and equipment costs reduction. A continuous production method for an aromatic polymer having an ether bond or an imide bond, the method including: (a) supplying a polymerization solvent and a reaction raw material to a continuous production apparatus including a plurality of reaction vessels; (b) performing a polycondensation reaction in the polymerization solvent in at least one of the reaction vessels to form a reaction mixture; and (c) successively moving the reaction mixture to each of the reaction vessel, the steps (a), (b), and (c) being performed in parallel; wherein an ether bond or an imide bond is formed by the polycondensation reaction; respective gas phase parts of the plurality of reaction vessels communicate with one another; and a pressure of each of the gas phase parts is uniform.

A hydrocarbon-based cross-linked membrane used for the proton exchange membrane of a fuel cell, containing a cross-linked composite mediated by the sulfonate groups of SPPSU and SPOSS. Where SPPSU is represented by formula (I), where a, b, c, and d are each independently an integer of 0-4, and the total of a, b, c, and d is a rational number greater than 1 in terms of the average per repeating unit, and SPOSS is represented by formula (II), where each R is independently a hydrogen, a hydroxyl group, a straight or branched C1-20 alkyl or alkoxyl group optionally containing a substituent, or any of the above-mentioned structures, each e is independently an integer of 0-2 for R, x is an integer of 1-20, and the total number of sulfonate groups is a rational number greater than 2 in terms of the average per molecule. ##STR00001##

A hydrocarbon-based cross-linked membrane used for the proton exchange membrane of a fuel cell, containing a cross-linked composite mediated by the sulfonate groups of SPPSU and SPOSS. Where SPPSU is represented by formula (I), where a, b, c, and d are each independently an integer of 0-4, and the total of a, b, c, and d is a rational number greater than 1 in terms of the average per repeating unit, and SPOSS is represented by formula (II), where each R is independently a hydrogen, a hydroxyl group, a straight or branched C1-20 alkyl or alkoxyl group optionally containing a substituent, or any of the above-mentioned structures, each e is independently an integer of 0-2 for R, x is an integer of 1-20, and the total number of sulfonate groups is a rational number greater than 2 in terms of the average per molecule. ##STR00001##

The present disclosure relates to method of making three-dimensional (3D) objects using an additive manufacturing system wherein the part material comprises a polymeric component comprising a poly(biphenyl ether sulfone) polymer (PPSU) having an optimized weight average molecular weight (Mw). In particular, the present disclosure relates to part material incorporating a PPSU of Mw ranging from 48,000 to 52,000 g/mol, for example in the form of filaments or spherical particles, for use in additive manufacturing systems to print 3D objects.