Results 31 to 40 of about 114,151 (273)
Adsorption of Random Copolymers
Macromolecules, 1989 Adsorption of polymers has a broad spectrum of industrial applications as a tool to control the stabilization of colloidal suspensions[l]. The problem is to overcome the aggregation tendency of solid particles, due to the their van der Waals attraction and one idea is to sterically protect the colloid with polymers[2].
Marques, C. M., Joanny, J.-F.
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Nature Communications, 2017 Block copolymers that form nanodomains and are used in nanolithography usually do not form nanopatterns with multiple shapes. Here the authors report a block copolymer that allows for UV- induced cleavage of one arm and demonstrate the transformation of ...
Chungryong Choi +7 more
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Calculation of the Micellar Structure of Polymer Surfactant Based on the Density Functional Theory [PDF]
Macromolecules 38, 5817 (2005), 2005 Amphiphilic block copolymer solutions form various micellar structures including micelles and vesicles. We applied the density functional theory for block copolymers which we have proposed to amphiphilic block copolymer systems. The 3 dimensional simulation for AB diblock copolymer solutions and AB diblock copolymer / A homopolymer blends has been done
arxiv +1 more source
A theoretical estimate on the probability of the formation of a self-avoiding copolymer macromolecule [PDF]
Journal of Physics: Conference Series, 1849 (2021) 012027, 2020 A lattice model of the directed self-avoiding walk is used to estimate the possibility on the formation of an infinitely long linear semi-flexible copolymer chain. The copolymer chain is assumed to composed of four different types of the monomers. A method of the recursion relations is used to solve the proposed model analytically to show that the ...
arxiv +1 more source
Co-existing morphologies of lamellae and double arrays of cylinders by A1BA2C tetrablock terpolymer
Giant, 2023 Here, we observed, via small-angle X-ray scattering and transmission electron microscopy, co-existing morphologies of lamellae and cylinders by precisely tailoring the volume fraction of each block in polystyrene-b-polyisoprene-b-polystyrene-b-poly(2 ...
Hyeongkeon Yoon +7 more
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Progress of compatibilization methods in polymer blends
Cailiao gongcheng, 2019 Compatibilization of immiscible polymer blends is by far the most general and efficient strategy to convert multiphase polymer blends with poor miscibility into high performance polymer alloys. The concept and necessity of compatibilization of immiscible
MA Peng-fei +5 more
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Frontiers in Chemistry, 2022 In recent years, the synthesis of monomer sequence-defined polymers has expanded into broad-spectrum applications in biomedical, chemical, and materials science fields.
Danh Nguyen, Lei Tao, Ying Li, Ying Li
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Density Functional Theory for Block Copolymer Melts and Blends [PDF]
Macromolecules, 38 (2005), 196, 2004 We derive an expression for the free energy of the blends of block copolymers expressed as a functional of the density distribution of the monomer of each block. The expression is a generalization of the Flory-Huggins-de Gennes theory for homo polymer blends, and also a generalization of the Ohta-Kawasaki theory for the melts of diblock copolymers. The
arxiv +1 more source
Design, Synthesis, Investigation, and Application of a Macromolecule Photoswitch
Frontiers in Chemistry, 2019 Azobenzene (AZO) has attracted increasing interest due to its reversible structural change upon a light stimulus. However, poor fatigue durability and the photobleaching phenomenon restricts its further application.
Juan Pang +5 more
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Block copolymer vesicles [PDF]
Pure and Applied Chemistry, 2004 Abstract Amphiphilic block copolymers have the ability to assemble into multiple morphologies in solution. Depending on the length of the hydrophilic block, the morphology can vary from spherical micelles, rods, and vesicles to large compound micelles (LCMs).
Opsteen, J.A. +2 more
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