Abstract:
A poly(ether ketone) polymer comprising recurring units derived from the reaction of at least one aromatic dihalocompound comprising at least one -C(O)- group and at least one diol having a general formula HO-Dol-OH wherein Dol is an aliphatic group comprising from 4 to 20 carbon atoms which comprises at least one cycloaliphatic moiety.
Abstract:
The invention pertains to novel aromatic ether ketone polymers derived from bio-based feed-stocks, comprising recurring units of formula (Rb): wherein: - E is selected from the group consisting of: - each of R, equal to or different from each other, is selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium; - j is zero or is an integer from 1 to 4, to a process for their manufacture and to the use of the same for manufacturing shaped articles.
Abstract:
The invention relates to modified polyaryl ether polymers (PAEs) obtained by end- capping the polymers with a phenolic aminoacid, in particular with a bio-phenolic aminoacid such as L-tyrosine. The polymers of the present invention feature high thermal resistance and increased hydrophilicity. The present invention also relates to a method for the manufacture of those polymers, and their use in the manufacture of shaped articles including membranes. No figure.
Abstract:
A process for the manufacturing of a poly(arylether sulfone) polymer comprising reacting in a solvent mixture comprising a polar aprotic solvent and in the presence of an alkali metal carbonate, a monomer mixture which contains : at least one 1,4:3,6-dianhydrohexitol selected from the group consisting of isosorbide (1), isomannide (2) and isoidide (3); at least one dihaloaryl compound of formula (S) : X-Ar1-SO2-[Ar2-(T-Ar3)n-SO2]m-Ar4-X wherein n and m, equal to or different from each other, are independently zero or an integer of 1 to 5; X and X', equal to or different from each other, are halogens selected from F, C1, Br, I; each of Ar1, Ar2, Ar3 and Ar4 equal to or different from each other and at each occurrence, is an aromatic moiety, T is a bond or a divalent group optionally comprising one or more than one heteroatom; optionally, at least one dihydroxyl compound different from the diol (AA); optionally, at least one dihaloaryl compound different from the dihalo (BB); and optionally, at least one hydroxyl-halo compound [hydro-halo (A'B')]; being understood that the overall amount of halo-groups and hydroxyl-groups of the monomers of the monomer mixture is substantially equimolecular, so as to obtain a polymer (b-PAES), wherein the reaction is carried out at a total % monomer mixture concentration equal to or more 10 % and less than 70 % with respect to the combined weight of monomer mixture and solvent mixture.
Abstract:
An epoxy resin composition [composition (C)] comprising: (i) from 30 to 90% by weight of at least one epoxy compound [compound E], based on the total weight of the composition (C); (ii) from 0 to 60% by weight of at least one curing agent [agent C], based on the total weight of the composition (C); (iii) from 0 to 15% by weight of at least one accelerator, based on the total weight of the composition (C); (iv) from 1 to 60% by weight of at least one poly(aryl ether sulfone) (I) [PAES(I-1)], based on the total weight of the composition (C) and wherein said PAES (I-1) polymer comprises amine functional groups in an amount equal to or more than 200 µeq/g; (v) from 1 to 60% by weight of at least one poly(aryl ether sulfone) (I) [PAES(I-2)], based on the total weight of the composition (C), and wherein said PAES (I-2) polymer is different from the PAES (I-1) polymer.