Show simple item record

dc.contributor.authorMisichronis, Konstantinos
dc.contributor.authorChen, Jihua
dc.contributor.authorImel, Adam
dc.contributor.authorKumar, Rajeev
dc.contributor.authorThostenson, James
dc.contributor.authorHong, Kunlun
dc.contributor.authorDadmun, Mark
dc.contributor.authorSumpter, Bobby G.
dc.contributor.authorKennemur, Justin G.
dc.contributor.authorHadjichristidis, Nikos
dc.contributor.authorMays, Jimmy W.
dc.contributor.authorAvgeropoulos, Apostolos
dc.date.accessioned2017-05-31T11:23:10Z
dc.date.available2017-05-31T11:23:10Z
dc.date.issued2017-03-15
dc.identifier.citationMisichronis K, Chen J, Imel A, Kumar R, Thostenson J, et al. (2017) Investigations on the Phase Diagram and Interaction Parameter of Poly(styrene-b-1,3-cyclohexadiene) Copolymers. Macromolecules 50: 2354–2363. Available: http://dx.doi.org/10.1021/acs.macromol.7b00104.
dc.identifier.issn0024-9297
dc.identifier.issn1520-5835
dc.identifier.doi10.1021/acs.macromol.7b00104
dc.identifier.urihttp://hdl.handle.net/10754/623857
dc.description.abstractA series of linear diblock copolymers containing polystyrene (PS) and poly(1,3-cyclohexadiene) (PCHD) with high 1,4-microstructure (>87%) was synthesized by anionic polymerization and high vacuum techniques. Microphase separation in the bulk was examined by transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS) and compared to computational analysis of the predicted morphological phase diagram for this system. Because of the high conformational asymmetry between PS and PCHD, these materials self-assemble into typical morphologies expected for linear diblock copolymer systems and atypical structures. Rheological measurements were conducted and revealed order–disorder transition temperatures (TODT), for the first time for PS-b-PCHD copolymers, resulting in a working expression for the effective interaction parameter χeff = 32/T – 0.016. Furthermore, we performed computational studies that coincide with the experimental results. These copolymers exhibit well-ordered structures even at high temperatures (∼260 °C) therefore providing a better insight concerning their microphase separation at the nanoscale which is important for their potential use in nanotechnology and/or nanolithography applications.
dc.description.sponsorshipThis work was supported by the Materials Science and Engineering Division, U.S. Department of Energy (DoE), Office of Basic Energy Sciences (BES), LLC, at Oak Ridge National Laboratory (ORNL). Part of the research was done at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. A.A. also thanks the Nuclear Magnetic Resonance Spectroscopy Facility and the Electron Microscopy Unit of the University of Ioannina. J.G.K. thanks the FSU Materials and Energy Hiring Initiative and the Donors of the American Chemical Society Petroleum Research Fund (55378-DNI7) for partial support during the preparation of this manuscript. N.H. acknowledges the support of King Abdullah University of Science and Technology (KAUST).
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/full/10.1021/acs.macromol.7b00104
dc.titleInvestigations on the Phase Diagram and Interaction Parameter of Poly(styrene-b-1,3-cyclohexadiene) Copolymers
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentPolymer Synthesis Laboratory
dc.identifier.journalMacromolecules
dc.contributor.institutionChemical Sciences Division
dc.contributor.institutionDepartment of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
dc.contributor.institutionDepartment of Materials Science and Engineering, University of Ioannina, University Campus-Dourouti, 45110 Ioannina, Greece
dc.contributor.institutionCenter for Nanophase Materials Sciences
dc.contributor.institutionComputer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
dc.contributor.institutionShared Materials Instrumentation Facility, Duke University, Durham, North Carolina 27708, United States
dc.contributor.institutionDepartment of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
kaust.personHadjichristidis, Nikos
dc.date.published-online2017-03-15
dc.date.published-print2017-03-28


This item appears in the following Collection(s)

Show simple item record