we have only one liquid-crystalline structure which disappears at about 180掳C; this structure is lamellar if the copolymer contains between 35 and 60% of polybutadiene.For copolymers owning an amorphous and a crystallizable block such as polystyrene-polyethyleneoxide, we have found two liquid-crys...
phase diagrampressure-sensitive adhesivestackifying resinsthermodynamic compatibility.The viscoelastic behavior, thermodynamic compatibility, and phase equilibria in block copolymer-based pressure-sensitive adhesives were investigated. The block copolymers investigated were: (1) polystyrene-block-polybutadiene-block-...
1.The synthesis and characterization of diblock copolymer PS-b-PEA;PS-b-PEA嵌段共聚物的合成与表征 2.Phase diagram of diblock copolymer confined in a cylindrical nanopore with polymer-grafted surface;嵌段共聚物受限于软孔内的自组装 3.Modification of epoxy resin by addition amphiphilic diblock copolymer...
Specifically, block copolymer films are immobilized on surfaces, and template successive layers through subtle surface topography. This strategy generates an enormous variety of three-dimensional morphologies that are absent in the native block copolymer phase diagram. 1 Center for Functional Nanomaterials,...
Matsen MW, Bates FS (1996) Unifying weak- and strong-segregation block copolymer theories. Macromolecules 29:1091–1098CrossRef 13.Khandpur AK, Forster S, Bates FS, Hamley IW, Ryan AJ, Bras W, Almdal K, Mortensen K (1995) Polyisoprene-polystyrene diblock copolymer phase diagram near the ...
20, No. 8, 1988 Block Copolymer Response to Heat Treatment Homogeneous Metastable Phase-separated 0 Polymer Fraction Figure 13. Schematic of the phase diagram for block copolymers in solution. The binodal line corresponds to the onset of phase separation ( T/9), and the spinodal line refers ...
3 (in which f constitutes the volume fraction of AB with respect to the AB+A mixture) [8]⋅, and the ternary isothermal AB-block copolymer/A-homopolymer/B-homopolymer phase diagram presented in Fig. 4 [9]⋅, are highly reminiscent of the phase behavior of surfactants in solution: ...
A block copolymer, preferably a block copolymer such as poly(isoprene-block-ethylene oxide), PI-b-PEO, is used as a structure directing agent for a polymer derived cerami
(1996) “Phase Behavior and Morphological Characteristics of Compositionally Symmetric Diblock Copolymer Blends,” Macromolecules. 29:8862-8870. Kang et al. (2007) “Broad-Wavelength-Range Chemically Tunable Block-Copolymer Photonic Gels,” Nat. Mater. 6:957-960. Kang et al. (2009) “Full ...
2. The brush block copolymer of claim 1, wherein said brush block copolymer is a triblock brush copolymer. 3. The brush block copolymer of claim 2, wherein said triblock brush copolymer is defined by the formula A′-B-A″, wherein A′ is said first polymer block, B is said second ...