SCFT Study of Microphase Separation in Mixed Polymer Brushes Grafted on Cylindrical Surface

2014 ◽  
Vol 72 (2) ◽  
pp. 208 ◽  
Author(s):  
Xin Ma ◽  
Cangyi Chen ◽  
Ping Tang ◽  
Feng Qiu
Keyword(s):  
Cylindrical Surface ◽  
Polymer Brushes ◽  
Microphase Separation

Exploring Lateral Microphase Separation in Mixed Polymer Brushes by Experiment and Self-Consistent Field Theory Simulations

2011 ◽  
Vol 45 (1) ◽  
pp. 510-524 ◽  
Author(s):  
Andrew D. Price ◽  
Su-Mi Hur ◽  
Glenn H. Fredrickson ◽  
Amalie L. Frischknecht ◽  
Dale L. Huber
Keyword(s):  
Field Theory ◽  
Polymer Brushes ◽  
Microphase Separation ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field ◽  
Self Consistent Field Theory

Microphase Separation of Mixed Binary Polymer Brushes at Different Temperatures

2009 ◽  
Vol 42 (18) ◽  
pp. 7194-7202 ◽  
Author(s):  
Gui-Li He ◽  
Holger Merlitz ◽  
Jens-Uwe Sommer ◽  
Chen-Xu Wu
Keyword(s):  
Polymer Brushes ◽  
Microphase Separation ◽  
Binary Polymer ◽  
Different Temperatures ◽  
Binary Polymer Brushes

Morphological studies of linear (AB)n multiblock copolymers and their blends

1992 ◽  
Vol 50 (1) ◽  
pp. 384-385
Author(s):  
Richard J. Spontak ◽  
Steven D. Smith ◽  
Arman Ashraf
Keyword(s):  
Electron Microscopy ◽  
Microphase Separation ◽  
Multiblock Copolymers ◽  
First Order ◽  
Morphological Studies ◽  
Transmission Electron ◽  
First Order Phase Transition ◽  
Covalently Bonded ◽  
Total Molecular Weight ◽  
First Order Phase

Block copolymers are composed of sequences of dissimilar chemical moieties covalently bonded together. If the block lengths of each component are sufficiently long and the blocks are thermodynamically incompatible, these materials are capable of undergoing microphase separation, a weak first-order phase transition which results in the formation of an ordered microstructural network. Most efforts designed to elucidate the phase and configurational behavior in these copolymers have focused on the simple AB and ABA designs. Few studies have thus far targeted the perfectly-alternating multiblock (AB)n architecture. In this work, two series of neat (AB)n copolymers have been synthesized from styrene and isoprene monomers at a composition of 50 wt% polystyrene (PS). In Set I, the total molecular weight is held constant while the number of AB block pairs (n) is increased from one to four (which results in shorter blocks). Set II consists of materials in which the block lengths are held constant and n is varied again from one to four (which results in longer chains). Transmission electron microscopy (TEM) has been employed here to investigate the morphologies and phase behavior of these materials and their blends.

Forces between asymmetric polymer brushes

1990 ◽  
Vol 51 (8) ◽  
pp. 701-707 ◽  
Author(s):  
D.F.K. Shim ◽  
M. E. Cates
Keyword(s):  
Polymer Brushes
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