Microphase separation in multiblock copolymer melts

1989 ◽  
Vol 91 (11) ◽  
pp. 7228-7235 ◽  
Author(s):  
Anne M. Mayes ◽  
Monica Olvera de la Cruz
Keyword(s):  
Microphase Separation ◽  
Multiblock Copolymer ◽  
Copolymer Melts

scholarly journals Double Periodic Lamellar-in-Lamellar Structure in Multiblock Copolymer Melts with Competing Length Scales

2006 ◽  
Vol 39 (19) ◽  
pp. 6765-6770 ◽  
Author(s):  
Rikkert Nap ◽  
Nazar Sushko ◽  
Igor Erukhimovich ◽  
Gerrit ten Brinke
Keyword(s):  
Lamellar Structure ◽  
Length Scales ◽  
Multiblock Copolymer ◽  
Copolymer Melts

Block Copolymers: Thermodynamics, Dynamics, and Small-Angle Scattering

2015 ◽  
Author(s):  
Lee M. Trask ◽  
Nacu Hernandez ◽  
Eric W. Cochran
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Small Angle ◽  
Self Assembly ◽  
Microphase Separation ◽  
Small Angle Scattering ◽  
Angle Scattering ◽  
Copolymer Melts ◽  
Shear Processing ◽  
Kinetics Of

This article explores the dynamics, thermodynamics, and small-angle scattering of block copolymers. The goal is to determine what drives the applications of block copolymers, i.e. how block copolymers behave and how they are characterized. The article begins with a summary of the experimental data and various theories that comprise our understanding of block copolymer thermodynamics, with particular emphasis on phase behavior and especially the theory of microphase separation. It then considers topics related to block copolymer dynamics, including diffusion, viscoelasticity and rheology, shear-processing, and the kinetics of self-assembly. It also discusses small-angle scattering techniques as applied to block copolymer characterization, including scattering from ordered block copolymer melts.

“Aggregation in Block Copolymer Solutions”

1989 ◽  
Vol 177 ◽  
Author(s):  
M. Olvera de la Cruz
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Solvent Effects ◽  
Microphase Separation ◽  
New Materials ◽  
Ordered Structures ◽  
Copolymer Concentration ◽  
Semidilute Solutions ◽  
Copolymer Melts ◽  
Block Sizes

ABSTRACTThe ability to produce block copolymers has led to new materials with unique properties. The chemical connectivity of incompatible blocks forces segregation to occur at distances of the order of the block sizes. In block copolymer melts, the segregated domains form periodic ordered structures called microphases. Most block copolymers are strongly incompatible. In such cases, in order to ensure equilibrium microphase separated samples, the microphases are prepared from solution. Microphase separation in semidilute solutions of block copolymers in nonselective good solvent is analyzed. The solvent effects on the thermodynamics in the weak segregation limit are discussed. The concentration of block copolymer at the transition in good solvents, scales as φtN−.62and in ϑ solvents as N−.5. The transitions between microphase morphologies as a function of block copolymer concentration are studied.

Microphase Separation in Starblock Copolymer Melts

1994 ◽  
Vol 27 (23) ◽  
pp. 6761-6767 ◽  
Author(s):  
M. W. Matsen ◽  
M. Schick
Keyword(s):  
Microphase Separation ◽  
Copolymer Melts
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