Toughening of epoxy by nanostructures with ABA triblock copolymers: An influence of organosilicon modification of block copolymer

2021 ◽  
Author(s):  
Lei Li ◽  
Wenjun Peng ◽  
Liyue Liu ◽  
Sixun Zheng
Keyword(s):  
Block Copolymer ◽  
Triblock Copolymers

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 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.

Poly(methacrylic acid)-based AB and ABC block copolymer nano-objects prepared via RAFT alcoholic dispersion polymerization

2014 ◽  
Vol 5 (10) ◽  
pp. 3466-3475 ◽  
Author(s):  
M. Semsarilar ◽  
V. Ladmiral ◽  
A. Blanazs ◽  
S. P. Armes
Keyword(s):  
Block Copolymer ◽  
Methacrylic Acid ◽  
Self Assembly ◽  
Dispersion Polymerization ◽  
Triblock Copolymers ◽  
Abc Triblock Copolymers

A series of well-defined amphiphilic methacrylic AB diblock and ABC triblock copolymers are synthesized via polymerization-induced self-assembly using an alcoholic dispersion polymerization formulation.

scholarly journals Single lithium-ion conducting poly(tetrafluorostyrene sulfonate) – polyether block copolymer electrolytes

2017 ◽  
Vol 8 (4) ◽  
pp. 785-794 ◽  
Author(s):  
Zhecheng Shao ◽  
Patric Jannasch
Keyword(s):  
Solid State ◽  
Block Copolymer ◽  
Triblock Copolymers ◽  
Lithium Ion ◽  
Block Copolymer Electrolytes ◽  
Ion Conducting ◽  
Very High

Well-designed BAB triblock copolymers with central polyether and flanking poly(lithium pentafluorostyrene sulfonate) blocks reach very high conductivities in the solid state.

Functional Chain Transfer Agent and its Application in Block Polymer Synthesis

2015 ◽  
Vol 799-800 ◽  
pp. 475-478
Author(s):  
Xiao Quan Peng ◽  
Chun Ju He
Keyword(s):  
Block Copolymer ◽  
Triblock Copolymer ◽  
Chain Transfer ◽  
Phase Transfer ◽  
Triblock Copolymers ◽  
Reaction System ◽  
Block Polymer ◽  
First Order ◽  
First Order Kinetics ◽  
Raft Agent

In this report, s-1-dodecyl-s’-(α,α’-dimethyl-α’’-dimethyl-α’’-aceticacid) trithiocarbonate (RAFT-COOH) was successfully synthesized by phase transfer catalyst reaction, which was then amidated with diaminopropyl terminated polydimethylsiloxane (NH2-PDMS-NH2) to synthesize PDMS-based macro-RAFT agent to control the synthesis of tri-block copolymer PDMA-b-PDMS-b-PDMA. The successful synthesis of small and macro chain transfer has been confirmed by techniques of FTIR. Moreover, the polymerization to synthesize tri-block copolymer proceeded with first-order kinetics, which showed the reaction system was a controlled/‘living’ polymerization. The triblock copolymers have also been characterized by FTIR, 1HNMR, and GPC techniques, which confirmed the successful synthesis of triblock copolymer.

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.

Interaction between bile salt sodium glycodeoxycholate and PEO–PPO–PEO triblock copolymers in aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 69313-69325 ◽  
Author(s):  
S. Bayati ◽  
C. Anderberg Haglund ◽  
N. V. Pavel ◽  
L. Galantini ◽  
K. Schillén
Keyword(s):  
Aqueous Solution ◽  
Molecular Weight ◽  
Block Copolymer ◽  
Bile Salt ◽  
Bile Salts ◽  
Triblock Copolymers ◽  
Block Length ◽  
Molar Ratio ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles

Bile salts can associate to PEO–PPO–PEO block copolymer micelles and disintegrate them depending on the relative block length and molecular weight of the copolymers and bile salt/copolymer molar ratio.

scholarly journals In situ Rheo-GISANS of triblock copolymers: gelation and shear effects on quasi-crystalline structures at interfaces

RSC Advances ◽  
2015 ◽  
Vol 5 (126) ◽  
pp. 104164-104171 ◽  
Author(s):  
Gemma E. Newby ◽  
Erik B. Watkins ◽  
Daniel Hermida Merino ◽  
Paul A. Staniec ◽  
Oier Bikondoa
Keyword(s):  
Drug Delivery ◽  
Block Copolymer ◽  
Triblock Copolymers ◽  
Polymeric Systems ◽  
Crystalline Structures ◽  
Shear Effects

The behaviour of polymeric systems at surfaces and under flow is very important in many applications, from drug delivery to lubrication. Here, we have studied the thermotropic phases formed by a model tri-block copolymer using in situ Rheo-GISANS.

scholarly journals Unravelling the formation of BAB block copolymer assemblies during PISA in water

2020 ◽  
Vol 11 (28) ◽  
pp. 4568-4578
Author(s):  
Pauline Biais ◽  
Olivier Colombani ◽  
Laurent Bouteiller ◽  
François Stoffelbach ◽  
Jutta Rieger
Keyword(s):  
Block Copolymer ◽  
Triblock Copolymers ◽  
Transient Network

BAB triblock copolymers prepared by PISA in water self-assemble into a transient network of bridged micelles. The slowdown of the exchange of B blocks between micelles during PISA is highlighted as well as the parameters affecting the polymerization.

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