A dual curable thiol-ene composition comprising a polythiol, an unsaturated compound, a photoinitiator, an organic hydroperoxide (thermal initiator) and optionally a nitrogen-containing base, such as e.g. an N-heterocyclic compound (together with the organic hydroperoxide a redox initiator system). A cross-linked polymer prepared therefrom. A method of making such a polymer. A cured sealant comprising such a polymer. The sealant is preferably for use in aerospace.

Disclosed is a liquid polymerizable composition including a phosphine oxide or a phosphine sulphide monomer composition with mineral nanoparticles homogeneously dispersed therein, as well as its use for the preparation of a transparent polymeric material having a high refractive index and its use in the optical field.

Disclosed is a liquid polymerizable composition including a phosphine oxide or a phosphine sulphide monomer composition with mineral nanoparticles homogeneously dispersed therein, as well as its use for the preparation of a transparent polymeric material having a high refractive index and its use in the optical field.

Provided are methods for linking polypeptides (including peptides and proteins) to other moieties using radical imitated thiol-ene chemistries, for example, modifying a polypeptide by introducing reactive thiol groups and reacting the thiol groups with olefin-containing reagents or alkyne-containing reagents under conditions that support radical thiol-ene or thiol-yne reactions. The reactive thiol groups have greater activity for radical thiol-ene reactions that a cysteine thiol group, including thiol groups that are separated from the peptide backbone by at least two carbon atoms, for example, the thiol group of a homocysteine residue. Also provided are compositions and biomaterials containing the linked polypeptides, for example, peptide and protein conjugates, and thiol-ene based biocompatible hydrogel polymers, and their uses in the medical field.

Provided are methods for linking polypeptides (including peptides and proteins) to other moieties using radical imitated thiol-ene chemistries, for example, modifying a polypeptide by introducing reactive thiol groups and reacting the thiol groups with olefin-containing reagents or alkyne-containing reagents under conditions that support radical thiol-ene or thiol-yne reactions. The reactive thiol groups have greater activity for radical thiol-ene reactions that a cysteine thiol group, including thiol groups that are separated from the peptide backbone by at least two carbon atoms, for example, the thiol group of a homocysteine residue. Also provided are compositions and biomaterials containing the linked polypeptides, for example, peptide and protein conjugates, and thiol-ene based biocompatible hydrogel polymers, and their uses in the medical field.

Provided are dual cure monomer are of the formula: (I) wherein R* is a (hetero)hydrocarbyl group; X.sup.1 is —O—, —S—, —NR.sup.3—, —NR.sup.3—CO—NR.sup.3, —CO—NR.sup.3— or NR.sup.3—CO—, where R.sup.3 is H, C.sub.1-C.sub.4 alkyl or R.sup.1-Epoxy; R.sup.1 is a divalent (hetero)hydrocarbyl group; X.sup.2 is —O—, —S—, —NR.sup.4—, —NR.sup.4—CO—NR.sup.4—, —CO—NR.sup.4—, —NR.sup.4—CO— where R.sup.4 is H, C.sub.1-C.sub.4 alkyl or R.sup.2—CH═CH.sub.2; R.sup.2 is a divalent (hetero)hydrocarbyl group; subscripts a and b are at least one, subscripts c and d are at least one, with the proviso that the monomer has at least two epoxy groups and at least two ene groups. ##STR00001##

Provided are dual cure monomer are of the formula: (I) wherein R* is a (hetero)hydrocarbyl group; X.sup.1 is —O—, —S—, —NR.sup.3—, —NR.sup.3—CO—NR.sup.3, —CO—NR.sup.3— or NR.sup.3—CO—, where R.sup.3 is H, C.sub.1-C.sub.4 alkyl or R.sup.1-Epoxy; R.sup.1 is a divalent (hetero)hydrocarbyl group; X.sup.2 is —O—, —S—, —NR.sup.4—, —NR.sup.4—CO—NR.sup.4—, —CO—NR.sup.4—, —NR.sup.4—CO— where R.sup.4 is H, C.sub.1-C.sub.4 alkyl or R.sup.2—CH═CH.sub.2; R.sup.2 is a divalent (hetero)hydrocarbyl group; subscripts a and b are at least one, subscripts c and d are at least one, with the proviso that the monomer has at least two epoxy groups and at least two ene groups. ##STR00001##

The present invention relates to a method for manufacturing a polyarylene sulfide resin comprising: reacting a sulfoxide represented by the following formula (1) with a particular aromatic compound to obtain a poly(arylenesulfonium salt) having a particular constitutional unit; and dealkylating or dearylating the poly(arylenesulfonium salt) to obtain a polyarylene sulfide resin having a particular constitutional unit, ##STR00001## wherein R.sup.1 represents an alkyl group having 1 to 10 carbon atoms, etc.; Ar.sup.1 and Ar.sup.2 each independently represent an arylene group optionally having a substituent; and Z represents a direct bond, etc.

The present invention relates to a method for manufacturing a polyarylene sulfide resin comprising: reacting a sulfoxide represented by the following formula (1) with a particular aromatic compound to obtain a poly(arylenesulfonium salt) having a particular constitutional unit; and dealkylating or dearylating the poly(arylenesulfonium salt) to obtain a polyarylene sulfide resin having a particular constitutional unit, ##STR00001## wherein R.sup.1 represents an alkyl group having 1 to 10 carbon atoms, etc.; Ar.sup.1 and Ar.sup.2 each independently represent an arylene group optionally having a substituent; and Z represents a direct bond, etc.

Disclosed is a liquid polymerizable composition including a phosphine oxide or a phosphine sulphide monomer composition with mineral nanoparticles homogeneously dispersed therein, as well as its use for the preparation of a transparent polymeric material having a high refractive index and its use in the optical field.