scholarly journals Anatomy of triply-periodic network assemblies: characterizing skeletal and inter-domain surface geometry of block copolymer gyroids

Soft Matter ◽  
2018 ◽  
Vol 14 (18) ◽  
pp. 3612-3623 ◽  
Author(s):  
Ishan Prasad ◽  
Hiroshi Jinnai ◽  
Rong-Ming Ho ◽  
Edwin L. Thomas ◽  
Gregory M. Grason
Keyword(s):  
Block Copolymer ◽  
Triblock Copolymers ◽  
Surface Geometry ◽  
Material Surfaces ◽  
Triply Periodic ◽  
Double Gyroid

Mesogeometric anatomy – 2D inter-material surfaces and 1D skeletons – extracted from triply-periodic, double-gyroid network assembled from triblock copolymers.

Symmetry-breaking in double gyroid block copolymer films by non-affine distortion

2021 ◽  
Vol 23 ◽  
pp. 101006
Author(s):  
Seungyun Jo ◽  
Haedong Park ◽  
Taesuk Jun ◽  
Kwangjin Kim ◽  
Hyunsoo Jung ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Symmetry Breaking ◽  
Copolymer Films ◽  
Double Gyroid

scholarly journals Seeing mesoatomic distortions in soft-matter crystals of a double-gyroid block copolymer

Nature ◽  
2019 ◽  
Vol 575 (7781) ◽  
pp. 175-179 ◽  
Author(s):  
Xueyan Feng ◽  
Christopher J. Burke ◽  
Mujin Zhuo ◽  
Hua Guo ◽  
Kaiqi Yang ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Soft Matter ◽  
Double Gyroid

Nonlinear Thermodynamics of Moving Material Surfaces in Electric Fields

1988 ◽  
Vol 43 (10) ◽  
pp. 829-846
Author(s):  
H. Wallschlager
Keyword(s):  
Electric Fields ◽  
Physical Meaning ◽  
Constitutive Equations ◽  
Practical Importance ◽  
Two Dimensional ◽  
Boundary Values ◽  
Surface Geometry ◽  
Mechanical Formalism ◽  
Material Surfaces ◽  
Nonlinear Thermodynamics

Abstract A continuum-mechanical formalism is presented for the phenomenological description of moving, curvilinear, material surfaces in electric fields in interaction with volume-phases. In addition to conventional equations (balance and constitutive laws) the explicit use of relations for the surface geometry is introduced. A method to establish nonlinear constitutive equations by tensorial and thermodynamical considerations is proved to be applicable to two-dimensional continua. The resulting equations for boundaries interacting with adjacent volumes are of practical importance for the selfconsistent calculation of boundary values. The physical meaning of the different relations is discussed.

Collapse of theIa3¯dcubic symmetry by uniaxial stretching of a double-gyroid block copolymer

2001 ◽  
Vol 63 (6) ◽  
Author(s):  
Shinichi Sakurai ◽  
Daisuke Isobe ◽  
Shigeru Okamoto ◽  
Takeshi Yao ◽  
Shunji Nomura
Keyword(s):  
Block Copolymer ◽  
Uniaxial Stretching ◽  
Double Gyroid

Self-assembly of PS-PNaSS-PS triblock copolymers from solution to the solid state

2017 ◽  
Vol 8 (21) ◽  
pp. 3357-3363 ◽  
Author(s):  
Sabrina Nehache ◽  
Mona Semsarilar ◽  
Martin In ◽  
Philippe Dieudonné-George ◽  
Joséphine Lai-Kee-Him ◽  
...  
Keyword(s):  
Solid State ◽  
Block Copolymer ◽  
Nanostructured Materials ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Morphological Development

Morphological development of block copolymer assemblies from solution to the solid state is explored to yield nanostructured materials.

Phase morphology in block copolymer systems

1994 ◽  
Vol 348 (1686) ◽  
pp. 149-166 ◽  
Keyword(s):  
Block Copolymer ◽  
Microphase Separation ◽  
Boundary Region ◽  
Phase Morphology ◽  
Defect Structures ◽  
Physical Mechanisms ◽  
Triply Periodic ◽  
Single Grain ◽  
Microdomain Structure

Microphase separation in block copolymer systems forms well-defined, periodic structure on the sub-micron length scale. This structure arises from the system striving to satisfy the delicate balance of minimizing the area of contact between incompatible chain segments and maximizing the conformational entropy of the macromolecules. Candidate geometries satisfying these constraints possess intermaterial dividing surfaces (IMDS) of constant mean curvature. These include triply periodic, bicontinuous structures related to minimal surfaces. These structures, recently observed in microphase-separated block copolymer systems, also arise in phase-separated surfactant-water systems, indicating the two phenomena may be driven by similar physical mechanisms. A complete description of block copolymer phase morphology requires characterization of the long-range ordered single grain microdomain structure, the defect structures within grains, and the microstructure of the boundary region between grains. The type of structure observed is sensitive to the architecture, chemical composition, and molecular mass of the copolymers. Thermodynamic treatments using a geometrical description of the IMDS provide a means for probing the physics of phase morphology in block copolymers.

Tricontinuous Double Gyroid Cubic Phase in Triblock Copolymers of the ABA Type

1997 ◽  
Vol 30 (19) ◽  
pp. 5634-5642 ◽  
Author(s):  
Apostolos Avgeropoulos ◽  
Benita J. Dair ◽  
Nikos Hadjichristidis ◽  
Edwin L. Thomas
Keyword(s):  
Triblock Copolymers ◽  
Cubic Phase ◽  
Double Gyroid

A Noncubic Triply Periodic Network Morphology in Poly(isoprene-b-styrene-b-ethylene oxide) Triblock Copolymers

2002 ◽  
Vol 35 (18) ◽  
pp. 7007-7017 ◽  
Author(s):  
Travis S. Bailey ◽  
Cordell M. Hardy ◽  
Thomas H. Epps ◽  
Frank S. Bates
Keyword(s):  
Ethylene Oxide ◽  
Triblock Copolymers ◽  
Triply Periodic ◽  
Network Morphology

Phase Behavior of Triblock Copolymers upon Incorporation of Non-Parent, Midblock-Associating Additives

1996 ◽  
Vol 461 ◽  
Author(s):  
J. H. Laurer ◽  
J. F. Mulling ◽  
R. Bukovnik ◽  
R. J. Spontak
Keyword(s):  
Molecular Weight ◽  
Block Copolymer ◽  
Phase Behavior ◽  
Triblock Copolymer ◽  
Triblock Copolymers ◽  
Thermoplastic Elastomer ◽  
Low Molecular Weight ◽  
Repulsive Interactions

ABSTRACTAddition of a block-selective homopolymer to a microphase-ordered block copolymer is known to result in preferential swelling of the chemically compatible microdomain. In this work, we examine the miscibility between a triblock copolymer and a relatively low-molecular-weight, chemically dissimilar, midblock-associating homopolymer and demonstrate that the homopolymer molecules residing in the swollen midblock matrix self-assemble to avoid repulsive interactions with neighboring microdomains. We extend this investigation to include systems composed of a very low-molecular-weight, midblock-associating additive (an oil). At high oil concentrations, the glassy copolymer endblocks micellize, resulting in the formation of a thermoplastic elastomer gel.

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