Disclosed are cross-linked polymers comprising a monomer, a cross-linker, and a sulfur moiety in the polymer backbone. Methods of making cross-linked polymers comprising a monomer, a cross-linker, and a sulfur moieity in the polymer backbone are disclosed. A metal complex, comprising a cross-linked polymer chelated to a toxic heavy metal atom or ion is disclosed. The disclosure provides a method of toxic heavy metal remediation using the cross-linked polymers. Also provided are articles and coatings comprising the disclosed cross-linked polymers.

A polyarylene sulfide copolymer has a glass transition temperature of 95° C. or higher and 190° C. or lower and has a melting point of 300° C. or lower or does not have a melting point, as measured by differential scanning calorimetry, and the copolymer containing as a structural unit arylene sulfide units having a number average molecular weight (Mn) of 1,000 or more and 10,000 or less. The polyarylene sulfide copolymer can be provided with high physical stability such as in rigidity at high temperature and excellent moldability and chemical resistance.

A polyarylene sulfide copolymer has a glass transition temperature of 95° C. or higher and 190° C. or lower and has a melting point of 300° C. or lower or does not have a melting point, as measured by differential scanning calorimetry, and the copolymer containing as a structural unit arylene sulfide units having a number average molecular weight (Mn) of 1,000 or more and 10,000 or less. The polyarylene sulfide copolymer can be provided with high physical stability such as in rigidity at high temperature and excellent moldability and chemical resistance.

The present invention relates to a poly(arylene sulfide) (PAS), comprising recurring units p, q and r according of formula (I) wherein n.sub.p, n.sub.q and n.sub.r are respectively the mole % of each recurring units p, q and r; recurring units p, q and r are arranged in blocks, in alternation or randomly; 2≤(n.sub.q+n.sub.r)/(n.sub.p+n.sub.q+n.sub.r)≤9; n.sub.q is ≥0% and n.sub.r is ≥0%; j is zero or an integer varying between 1 and 4; R.sup.1 is selected from the group consisting of halogen atoms, C.sub.1-C.sub.12 alkyl groups, C.sub.7-C.sub.24 alkylaryl groups, C.sub.7-C.sub.24 aralkyl groups, C.sub.6-C.sub.24 arylene groups, C.sub.1-C.sub.12 alkoxy groups, and C.sub.6-C.sub.18 aryloxy groups.

##STR00001##

The present invention relates to a poly(arylene sulfide) (PAS), comprising recurring units p, q and r according of formula (I) wherein n.sub.p, n.sub.q and n.sub.r are respectively the mole % of each recurring units p, q and r; recurring units p, q and r are arranged in blocks, in alternation or randomly; 2≤(n.sub.q+n.sub.r)/(n.sub.p+n.sub.q+n.sub.r)≤9; n.sub.q is ≥0% and n.sub.r is ≥0%; j is zero or an integer varying between 1 and 4; R.sup.1 is selected from the group consisting of halogen atoms, C.sub.1-C.sub.12 alkyl groups, C.sub.7-C.sub.24 alkylaryl groups, C.sub.7-C.sub.24 aralkyl groups, C.sub.6-C.sub.24 arylene groups, C.sub.1-C.sub.12 alkoxy groups, and C.sub.6-C.sub.18 aryloxy groups.

##STR00001##

The present invention provides a solution-processable self-healing hydrolytically stable elastomer, a method for the preparation thereof, and articles of manufacture comprising the elastomer. The elastomer comprises polymeric chains comprising units of formula (A1), wherein R is a polybutadiene-containing polyurethane; R.sub.1 and R.sub.1′ are independently selected from the group consisting of: —H, (C.sub.1-C.sub.20)alkyl, (C.sub.5-C.sub.14)aryl, —OR.sub.4, —(CO)R.sub.5, —O(CO)R.sub.6, —(SO)R.sub.7, CO—R.sub.8, —COOR.sub.9, —NO.sub.2, and halogen; R.sub.2, R.sub.2′, R.sub.3 and R.sub.3′ are independently selected from the group consisting of: —H, (C.sub.1-C.sub.20)alkyl, and (C.sub.5-C.sub.14)aryl; R.sub.4 to R.sub.9 are the same or different, and are independently selected from the group consisting of: —H, (C.sub.1-C.sub.20)alkyl, and (C.sub.5-C.sub.14)aryl; m is 4; wherein the elastomer is dynamically crosslinked by aromatic disulfide metathesis, and wherein the elastomer has a water contact angle of above 100 #.

##STR00001##

The present invention provides a solution-processable self-healing hydrolytically stable elastomer, a method for the preparation thereof, and articles of manufacture comprising the elastomer. The elastomer comprises polymeric chains comprising units of formula (A1), wherein R is a polybutadiene-containing polyurethane; R.sub.1 and R.sub.1′ are independently selected from the group consisting of: —H, (C.sub.1-C.sub.20)alkyl, (C.sub.5-C.sub.14)aryl, —OR.sub.4, —(CO)R.sub.5, —O(CO)R.sub.6, —(SO)R.sub.7, CO—R.sub.8, —COOR.sub.9, —NO.sub.2, and halogen; R.sub.2, R.sub.2′, R.sub.3 and R.sub.3′ are independently selected from the group consisting of: —H, (C.sub.1-C.sub.20)alkyl, and (C.sub.5-C.sub.14)aryl; R.sub.4 to R.sub.9 are the same or different, and are independently selected from the group consisting of: —H, (C.sub.1-C.sub.20)alkyl, and (C.sub.5-C.sub.14)aryl; m is 4; wherein the elastomer is dynamically crosslinked by aromatic disulfide metathesis, and wherein the elastomer has a water contact angle of above 100 #.

##STR00001##

A method for forming a polyarylene sulfide with a relatively low content of volatile malodorous compounds is provided. More particularly, such low compound levels may be achieved by selectively controlling the manner in which the polyarylene sulfide is washed after it is formed.

A method for forming a polyarylene sulfide with a relatively low content of volatile malodorous compounds is provided. More particularly, such low compound levels may be achieved by selectively controlling the manner in which the polyarylene sulfide is washed after it is formed.

The present invention is directed to a method of making an asymmetric polysulfide, comprising the step of simultaneously reacting an olefinically unsaturated compound, elemental sulfur, and a thiol in the presence of a catalytic amount of a base to produce the asymmetric polysulfide.