Investigation of the microphase separation transition in low-molecular-weight diblock copolymers

1989 ◽  
Vol 22 (8) ◽  
pp. 3380-3387 ◽  
Author(s):  
John N. Owens ◽  
Irena S. Gancarz ◽  
Jeffrey T. Koberstein ◽  
Thomas P. Russell
Keyword(s):  
Molecular Weight ◽  
Diblock Copolymers ◽  
Microphase Separation ◽  
Low Molecular Weight

Microphase Separation in Low Molecular Weight Styrene-Isoprene Diblock Copolymers Studied by DSC and13C NMR

1980 ◽  
Vol 13 (1) ◽  
pp. 100-106 ◽  
Author(s):  
B. Morèse-Séguéla ◽  
M. St-Jacques ◽  
J. M. Renaud ◽  
J. Prod'homme
Keyword(s):  
Molecular Weight ◽  
Diblock Copolymers ◽  
Microphase Separation ◽  
Low Molecular Weight

Microphase separation of short wormlike diblock copolymers with a finite interaction range

Soft Matter ◽  
2016 ◽  
Vol 12 (8) ◽  
pp. 2481-2490 ◽  
Author(s):  
Ying Jiang ◽  
Xinghua Zhang ◽  
Bing Miao ◽  
Dadong Yan ◽  
Jeff Z. Y. Chen
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Structural Properties ◽  
Diblock Copolymers ◽  
Microphase Separation ◽  
Low Molecular Weight ◽  
Interaction Range ◽  
High Molecular Weight Polymers

A study on the structural properties of low-molecular weight AB diblock copolymers indicates substantial deviations from the properties of high-molecular weight polymers.

Phase Behavior of Binary Blends of High Molecular Weight Diblock Copolymers with a Low Molecular Weight Triblock

2008 ◽  
Vol 41 (15) ◽  
pp. 5785-5792 ◽  
Author(s):  
Rafal A. Mickiewicz ◽  
Eleftherios Ntoukas ◽  
Apostolos Avgeropoulos ◽  
Edwin L. Thomas
Keyword(s):  
Molecular Weight ◽  
Phase Behavior ◽  
High Molecular Weight ◽  
Diblock Copolymers ◽  
Low Molecular Weight ◽  
Binary Blends

Block Copolymer Thin Films Above and Below the Order-Disorder Transition Temperature

2000 ◽  
Vol 629 ◽  
Author(s):  
Ratchana Limary ◽  
Peter F. Green
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Molecular Weight ◽  
Transition Temperature ◽  
Block Copolymer ◽  
Film Thickness ◽  
Diblock Copolymer ◽  
Diblock Copolymers ◽  
Microphase Separation ◽  
Disorder Transition Temperature

ABSTRACTSymmetric diblock copolymers undergo a disorder to order transition below a microphase separation transition temperature. In this temperature range the structure is characterized by alternating lamellae of thickness L. In thin film geometries, the lamellae are oriented normal to the substrate if there is a preferential interaction between either of the block constituents and the substrate/copolymer or copolymer/vacuum interfaces. Depending on the relation between the film thickness and L, the topography of the film might comprise of holes, islands or spinodal-like structures. We show that in a polystyrene-b-poly(methyl methacrylate) diblock copolymer of molecular weight 20, 000 g/mol, above the microphase separation transition temperature, the topography of the film depends on the thickness. A heirarchy of bicontinuous patterns and holes is observed with increasing film thickness for films thinner than 35 nm.

Morphological and Isothermal Diffusive Probe Analyses of Low-Molecular-Weight Diblock Copolymers

1998 ◽  
Vol 31 (7) ◽  
pp. 2174-2184 ◽  
Author(s):  
Seong-Uk Hong ◽  
Jonathan H. Laurer ◽  
John M. Zielinski ◽  
Jon Samseth ◽  
Steven D. Smith ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Diblock Copolymers ◽  
Low Molecular Weight
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