Polysulfide copolymer particle and method of preparing the same

Abstract

The present disclosure relates to a polysulfide copolymer particle and a method of preparing the polysulfide copolymer particle.

We claim: 
     
         1 . A polysulfide copolymer particle, having a sulfur content of 65 wt % or more. 
     
     
         2 . The polysulfide copolymer particle of  claim 1 ,
 wherein the polysulfide copolymer particle is formed by copolymerization of a polysulfide with a polyfunctional monomer in the presence of a surfactant.   
     
     
         3 . The polysulfide copolymer particle of  claim 1 ,
 wherein the polysulfide copolymer particle has a size of from nanometer to micrometer.   
     
     
         4 . The polysulfide copolymer particle of  claim 1 ,
 wherein the polysulfide copolymer particle has a cross-linked polymer or a branched polymer form.   
     
     
         5 . The polysulfide copolymer particle of  claim 2 ,
 wherein the surfactant includes a cationic surfactant.   
     
     
         6 . A method of preparing a polysulfide copolymer particle, comprising:
 preparing a sulfur-precursor solution containing a polysulfide salt represented by the formula X 2 S m  wherein X is an alkali metal cation or ammonium cation and m is a number of from 1 to 10; and   adding a surfactant and a polyfunctional monomer to the sulfur-precursor solution followed by polymerization reaction to obtain a polysulfide polymer particle.   
     
     
         7 . The method of preparing a polysulfide copolymer particle of  claim 6 ,
 wherein a molar ratio of the polysulfide salt to the surfactant is from 1:0.1 to 500.   
     
     
         8 . The method of preparing a polysulfide copolymer particle of  claim 6 ,
 wherein the surfactant acts as both a dispersing agent and a phase transfer catalyst.   
     
     
         9 . The method of preparing a polysulfide copolymer particle of  claim 6 ,
 wherein the surfactant includes a cationic surfactant.   
     
     
         10 . The method of preparing a polysulfide copolymer particle of  claim 9 ,
 wherein the cationic surfactant includes cetyltrimethylammonium sulfate bromide (CTAB), myristyltrimethylammonium bromide (MTAB), benzyl dodecyldimethylammonium bromide (BDAB), hexadecyltrimethylammonium bromide, tetraheptylammonium bromide, cetyltrimethylammonium stearate, benzyltributylammonium chloride, benzyltrietylammonium bromide, benzyltrimethylammonium bromide, phenyltrimethylammonium bromide, phenyltrimethylammonium iodide, tetrabutylammonium bromide, tetrabutylammonium chloride, tetrabutylammonium hydrogen sulfate, tetrabutylammonium iodide, tetraethylammonium bromide, tetrabutylammonium fluoride, or tetrabutylammonium tetrafluoroborate.   
     
     
         11 . The method of preparing a polysulfide copolymer particle of  claim 6 ,
 wherein the polysulfide copolymer particle has a size of from nanometer to micrometer.   
     
     
         12 . The method of preparing a polysulfide copolymer particle of  claim 6 ,
 wherein the polysulfide copolymer particle has a sulfur content of 65 wt % or more.