Temperature−Composition Phase Diagrams for Binary Blends Consisting of Chemically Dissimilar Diblock Copolymers

2000 ◽  
Vol 33 (8) ◽  
pp. 3009-3018 ◽  
Author(s):  
Nitin Y. Vaidya ◽  
Chang Dae Han
Keyword(s):  
Phase Diagrams ◽  
Diblock Copolymers ◽  
Binary Blends

The Ordered Bicontinuous Double Diamond Structure in Binary Blends of Diblock Copolymer and Homopolymer.

1989 ◽  
Vol 171 ◽  
Author(s):  
Karen I. Winey ◽  
Edwin L. Thomas
Keyword(s):  
Molecular Weight ◽  
Diblock Copolymer ◽  
Diblock Copolymers ◽  
Composition Range ◽  
Volume Fraction ◽  
Diamond Structure ◽  
Binary Blends ◽  
Resultant Effect ◽  
Strong Segregation ◽  
Double Diamond

ABSTRACTWe report the observation of the ordered bicontinuous double diamond (OBDD) structure in binary blends of poly(styrene-isoprene) diblock copolymer and homopolystyrene. The overall polystyrene volume fraction range is 64 - 67 PSvol% for the OBDD structure in binary blends of a lamellar diblock (SI 27/22) and a homopolymer (14.0 hPS). This composition range is approximately within the polystyrene volume fraction range established for pure diblock copolymers in the strong segregation regime having the OBDD structure. Ordered lamellae are observed at approximately 65 PSvol% when the homopolystyrene molecular weight is greater than the molecular weight of the polystyrene block of the copolymer. This observation is discussed in terms of the decreased degree of mixing between the homopolymer and the corresponding block and the resultant effect on the interfacial curvature.

Stabilizing the Frank-Kasper Phases via Binary Blends of AB Diblock Copolymers

2016 ◽  
Vol 5 (10) ◽  
pp. 1167-1171 ◽  
Author(s):  
Meijiao Liu ◽  
Yicheng Qiang ◽  
Weihua Li ◽  
Feng Qiu ◽  
An-Chang Shi
Keyword(s):  
Diblock Copolymers ◽  
Binary Blends

Gyroid Structures and Morphological Control in Binary Blends of Polystyrene-block-polyisoprene Diblock Copolymers

1998 ◽  
Vol 31 (2) ◽  
pp. 336-343 ◽  
Author(s):  
Shinichi Sakurai ◽  
Hiroshi Irie ◽  
Hideo Umeda ◽  
Shunji Nomura ◽  
Hee Hyun Lee ◽  
...  
Keyword(s):  
Diblock Copolymers ◽  
Binary Blends ◽  
Morphological Control

Phase diagrams of diblock copolymers in electric fields: a self-consistent field theory study

2016 ◽  
Vol 18 (15) ◽  
pp. 10309-10319 ◽  
Author(s):  
Ji Wu ◽  
Xianghong Wang ◽  
Yongyun Ji ◽  
Linli He ◽  
Shiben Li
Keyword(s):  
Field Theory ◽  
Phase Diagrams ◽  
Electric Fields ◽  
Diblock Copolymers ◽  
Phase Boundaries ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field ◽  
Self Consistent Field Theory ◽  
And Shifts

The electric field induces the new phases and shifts the phase boundaries in phase diagrams for the diblock copolymers.

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