The present invention relates to a metal phthalocyanine polymer that includes a repeating structural unit obtained by amide bonding of a structural unit represented by the following general formula (1a) to a structural unit represented by the following general formula (2a): ##STR00001## With general formula (1a), L is a divalent or trivalent metal ion belonging to Period 3 to Period 5 on the long-form periodic table. With general formula (2a), M is a divalent or trivalent metal ion belonging to Period 3 to Period 5 on the long-form periodic table.

The present invention relates to a metal phthalocyanine polymer that includes a repeating structural unit obtained by amide bonding of a structural unit represented by the following general formula (1a) to a structural unit represented by the following general formula (2a): ##STR00001## With general formula (1a), L is a divalent or trivalent metal ion belonging to Period 3 to Period 5 on the long-form periodic table. With general formula (2a), M is a divalent or trivalent metal ion belonging to Period 3 to Period 5 on the long-form periodic table.

New diamine monomers bearing sulfone terminated pendant groups, as well as methods for making the same, are provided. The diamine monomers are useful toward making polyamide, polyimide, and poly(amide-imide) polymers and copolymers, which possess hygromorphic properties and demonstrate humidity driven motility.

A novel monomer design for the synthesis of PPE-type polymers containing conjugated segments of well-defined length connected by flexible linkers under Sonogashira reaction conditions is presented. The resulting polymers retain the photophysical properties of a fully conjugated PPE. The extent of incorporation of the flexible units along the backbone is governed by the comonomer feed ratio and can be varied in a statistically predictable fashion.

Methods for functionalizing the surface of nanofiber substrates, including electrospun fibres and non-woven or woven mats of fibres are described. Functionalised nanofiber substrates presenting biologically active moieties such as biotin and saccharides are described.

The invention discloses a flame-retardant semi-aromatic polyamide derived from the following monomers: a diacid monomer A: where A1 is terephthalic acid or terephthalic acid and other diacid, terephthalic acid accounts for 50 to 100 mol % of A1, and A2 is [(6-oxido-6H-dibenzo-(c,e)(1,2)-oxaphosphorin-6-ketone)-methyl]-butanedioic acid, A1+A2=100 mol %, A1=90 to 99 mol %, A2=1 to 10 mol %; and diamine monomer B: one or more of diamine monomers containing 4 to 36 carbon atoms. In the present invention, by an in situ polymerization, a specific flame-retardant monomer [(6-oxido-6H-dibenzo-(c,e)(1,2)-oxaphosphorin-6-ketone)-methyl]-butanedioic acid is copolymerized in a semi-aromatic polyamide chain segment, excellent mechanical properties and low water absorption can be obtained.

The invention discloses a flame-retardant semi-aromatic polyamide derived from the following monomers: a diacid monomer A: where A1 is terephthalic acid or terephthalic acid and other diacid, terephthalic acid accounts for 50 to 100 mol % of A1, and A2 is [(6-oxido-6H-dibenzo-(c,e)(1,2)-oxaphosphorin-6-ketone)-methyl]-butanedioic acid, A1+A2=100 mol %, A1=90 to 99 mol %, A2=1 to 10 mol %; and diamine monomer B: one or more of diamine monomers containing 4 to 36 carbon atoms. In the present invention, by an in situ polymerization, a specific flame-retardant monomer [(6-oxido-6H-dibenzo-(c,e)(1,2)-oxaphosphorin-6-ketone)-methyl]-butanedioic acid is copolymerized in a semi-aromatic polyamide chain segment, excellent mechanical properties and low water absorption can be obtained.

The present disclosure relates to a compound used to prepare a polyamide-based polymer. More specifically, the present disclosure relates to a compound represented by the following Formula 1 and a polyamide-based polymer using the same.

##STR00001##

wherein n is an integer of 1 or 2.

The present disclosure relates to a compound used to prepare a polyamide-based polymer. More specifically, the present disclosure relates to a compound represented by the following Formula 1 and a polyamide-based polymer using the same.

##STR00001##

wherein n is an integer of 1 or 2.

Provided are a polymer having a constituent component represented by formula (I) below, a method for producing the polymer, a diamine compound suitable as a raw material for the polymer, a gas separation membrane haying a gas separation layer including the polymer, and a gas separation module and a gas separation apparatus that have the gas separation membrane.

##STR00001##

In the formula (I), R.sup.A, R.sup.B, and R.sup.C represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a halogen atom. Herein, at least one of R.sup.A, R.sup.B, or R.sup.C represents an alkyl group having 1 to 4 carbon atoms or a halogen atom. The alkyl group having 1 to 4 carbon atoms is not trifluoromethyl and ** represents linking sites.