title: Microphase separation induced in the melt of Pluronic copolymers by blending with a hydrogen bonding urea-urethane end-capped supramolecular polymer.
abstract: Blending with a hydrogen-bonding supramolecular polymer is shown to be a successful novel strategy to induce microphase-separation in the melt of a Pluronic polyether block copolymer. The supramolecular polymer is a polybutadiene derivative with urea-urethane end caps. Microphase separation is analysed using small-angle X-ray scattering and its influence on the macroscopic rheological properties is analysed. FTIR spectroscopy provides a detailed picture of the inter-molecular interactions between the polymer chains that induces conformational changes leading to microphase separation.
authors.affiliation: BM26/DUBBLE, CRG, ESRF-The European Synchrotron, CS40220, 38043 Grenoble Cedex 9, France.
authors.forename: Daniel
authors.initials: D
authors.lastname: Hermida-Merino
authors.forename: Gemma E
authors.initials: GE
authors.lastname: Newby
authors.forename: Ian W
authors.initials: IW
authors.lastname: Hamley
authors.forename: Wayne
authors.initials: W
authors.lastname: Hayes
authors.forename: Andrew
authors.initials: A
authors.lastname: Slark
mesh_terms: D006860:Hydrogen Bonding; D020442:Poloxamer / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D012212:Rheology; D053838:Scattering, Small Angle; D017550:Spectroscopy, Fourier Transform Infrared; D014508:Urea / Q000737:chemistry*; D014520:Urethane / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D011108:Polymers; D020442:Poloxamer; D014520:Urethane; D014508:Urea