{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T04:38:04Z","timestamp":1792816684972,"version":"4.5.0"},"reference-count":45,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T00:00:00Z","timestamp":1792713600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T00:00:00Z","timestamp":1792713600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Macromol. Rapid Commun."],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    The structural factors governing dispersion and precipitation in sulfur\u2010containing polymer systems remain poorly understood. Sulfur\u2010containing polymer microparticles are prepared by the dispersion copolymerization of 1,7\u2010octadiene diepoxide (OD) with polysulfide species generated in situ from elemental sulfur and sodium sulfide. Among the examined stabilizers, only poly(vinylpyrrolidone) enables particle formation, whereas the other stabilizers result in precipitation, allowing dispersed and precipitated fractions to coexist for structural comparison. The resulting PolyOD\u2010S\n                    <jats:italic>\n                      <jats:sub>n<\/jats:sub>\n                    <\/jats:italic>\n                    polymers possess structurally defined backbones, enabling the average sulfur rank,\n                    <jats:italic>n<\/jats:italic>\n                    , defined as the average number of consecutive sulfur atoms in a polysulfide segment, to be estimated using\n                    <jats:sup>1<\/jats:sup>\n                    H NMR chemical\u2010shift analysis combined with elemental\u2010composition analysis. Fractionation by natural sedimentation and filtration shows that polymers with higher average sulfur ranks preferentially precipitate, whereas those with lower average sulfur ranks remain dispersed. In contrast, no clear correlation is observed between molecular weight and fractionation behavior. These findings indicate that sulfur rank, rather than overall molecular weight, provides a distinct structural basis for the dispersion\/precipitation behavior of sulfur\u2010containing polymers.\n                  <\/jats:p>","DOI":"10.1002\/marc.70459","type":"journal-article","created":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T04:17:30Z","timestamp":1792815450000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Sulfur\u2010Rank\u2010Dependent Dispersion and Precipitation Behavior of Structurally Defined Sulfur\u2010Containing Polymers"],"prefix":"10.1002","author":[{"given":"Takumi","family":"Hashimoto","sequence":"first","affiliation":[{"name":"Department of Macromolecular Science Graduate School of Science The University of Osaka  Toyonaka 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