Methods of forming and using a polymer dispersion are described herein. The polymer dispersion includes a plurality of polythioaminal microparticles in a fluid medium that does not dissolve the plurality of polythioaminal microparticles. The fluid medium may be aqueous, for example water. The polymer dispersion may be applied to a substrate, and the fluid medium removed, to form an article substantially made of a polymerized polythioaminal mass. The dispersion, and any article made from the dispersion, may include pigments and active ingredients, such as biocides.

Methods of forming and using a polymer dispersion are described herein. The polymer dispersion includes a plurality of polythioaminal microparticles in a fluid medium that does not dissolve the plurality of polythioaminal microparticles. The fluid medium may be aqueous, for example water. The polymer dispersion may be applied to a substrate, and the fluid medium removed, to form an article substantially made of a polymerized polythioaminal mass. The dispersion, and any article made from the dispersion, may include pigments and active ingredients, such as biocides.

Methods of forming and using a polymer dispersion are described herein. The polymer dispersion includes a plurality of polythioaminal microparticles in a fluid medium that does not dissolve the plurality of polythioaminal microparticles. The fluid medium may be aqueous, for example water. The polymer dispersion may be applied to a substrate, and the fluid medium removed, to form an article substantially made of a polymerized polythioaminal mass. The dispersion, and any article made from the dispersion, may include pigments and active ingredients, such as biocides.

A composition comprises a copolymer made from a thiol terminated hydrocarbon monomer and at least one additional monomer chosen from the compounds of i) a terminally unsaturated hydrocarbon monomer, ii) an isocyanate functionalized hydrocarbon monomer and iii) a silane monomer substituted with two or more C.sub.2 to C.sub.8 terminally unsaturated alkenyl groups or C.sub.2 to C.sub.8 terminally unsaturated alkynyl groups. The composition also includes a particulate filler dispersed in the copolymer and a solvent. If the terminally unsaturated hydrocarbon monomer is polybutadiene, the polybutadiene contains from about 0 mol % to about 30 mol % of polymer units in a cis-1,4-butadiene form. Composites made from the composition and methods for making composite panels are also disclosed.

A composition comprises a copolymer made from a thiol terminated hydrocarbon monomer and at least one additional monomer chosen from the compounds of i) a terminally unsaturated hydrocarbon monomer, ii) an isocyanate functionalized hydrocarbon monomer and iii) a silane monomer substituted with two or more C.sub.2 to C.sub.8 terminally unsaturated alkenyl groups or C.sub.2 to C.sub.8 terminally unsaturated alkynyl groups. The composition also includes a particulate filler dispersed in the copolymer and a solvent. If the terminally unsaturated hydrocarbon monomer is polybutadiene, the polybutadiene contains from about 0 mol % to about 30 mol % of polymer units in a cis-1,4-butadiene form. Composites made from the composition and methods for making composite panels are also disclosed.

A photopolymer resin, in accordance with one embodiment, is capable of polymerization by exposure to polymerizing light, and characterized as enabling depolymerization of a resulting polymer product by exposure to depolymerizing light. A photopolymer resin, in accordance with another embodiment, includes one or more pH labile monomers that include one or more polymerizable functional handles, >0 to about 5 wt % of a polymerizing light-sensitive photoinitiator, and 0.01 to about 3 wt % of a depolymerizing light-responsive photoacid generator or photobase generator. A method, in accordance with one embodiment, includes exposing at least predefined portions of a photopolymer resin comprising one or more pH labile monomers and a photoinitiator to polymerizing light for causing polymerization of an exposed portion of the photopolymer resin thereby creating a polymer product, wherein the photopolymer resin further comprises a photoacid generator or photobase generator that is responsive to depolymerizing light.

A photopolymer resin, in accordance with one embodiment, is capable of polymerization by exposure to polymerizing light, and characterized as enabling depolymerization of a resulting polymer product by exposure to depolymerizing light. A photopolymer resin, in accordance with another embodiment, includes one or more pH labile monomers that include one or more polymerizable functional handles, >0 to about 5 wt % of a polymerizing light-sensitive photoinitiator, and 0.01 to about 3 wt % of a depolymerizing light-responsive photoacid generator or photobase generator. A method, in accordance with one embodiment, includes exposing at least predefined portions of a photopolymer resin comprising one or more pH labile monomers and a photoinitiator to polymerizing light for causing polymerization of an exposed portion of the photopolymer resin thereby creating a polymer product, wherein the photopolymer resin further comprises a photoacid generator or photobase generator that is responsive to depolymerizing light.

An active energy ray polymerization initiator has a structure of Chemical Formula (1) or (2), ##STR00001## L.sub.1 represents Chemical Formula (I), L.sub.2 represents Chemical Formula (II), one of L.sub.3 and L.sub.4 and one of L.sub.5 and L.sub.6 represent the same group as L.sub.1, the rest of L.sub.3 and L.sub.4 and one of L.sub.5 and L.sub.6 represent the same group as L.sub.2, Link 2 represents a single bond, O, CO, SO.sub.2, C(CF.sub.3).sub.2, an aliphatic hydrocarbon group having 1 to 12 carbon atoms, or an aromatic group having 6 to 15 carbon atoms, ##STR00002## Z represents a tertiary amine. ##STR00003## R represents a hydrocarbon group having one to three carbon atoms or methoxy group, n represents 0 or an integer of from 1 to 3, Link 1 represents (CH.sub.2).sub.x(OC.sub.2H.sub.4).sub.y, where x represents an integer of from 2 to 12 and y represents 0 or an integer of from 1 to 11.

An active energy ray polymerization initiator has a structure of Chemical Formula (1) or (2), ##STR00001## L.sub.1 represents Chemical Formula (I), L.sub.2 represents Chemical Formula (II), one of L.sub.3 and L.sub.4 and one of L.sub.5 and L.sub.6 represent the same group as L.sub.1, the rest of L.sub.3 and L.sub.4 and one of L.sub.5 and L.sub.6 represent the same group as L.sub.2, Link 2 represents a single bond, O, CO, SO.sub.2, C(CF.sub.3).sub.2, an aliphatic hydrocarbon group having 1 to 12 carbon atoms, or an aromatic group having 6 to 15 carbon atoms, ##STR00002## Z represents a tertiary amine. ##STR00003## R represents a hydrocarbon group having one to three carbon atoms or methoxy group, n represents 0 or an integer of from 1 to 3, Link 1 represents (CH.sub.2).sub.x(OC.sub.2H.sub.4).sub.y, where x represents an integer of from 2 to 12 and y represents 0 or an integer of from 1 to 11.