Aggregation behavior of cyclic rod-coil diblock copolymers in selective solvents
نویسندگان
چکیده
منابع مشابه
Solvent effect on the aggregation behavior of rod-coil diblock copolymers.
The water-induced aggregation behavior of rod-coil diblock copolymers based on poly(ethylene oxide) (PEO) and poly{(+)-2,5-bis[4'-((S)-2-methylbutoxy)phenyl]styrene} (PMBPS), PEO104-b-PMBPS53, was investigated in the common solvent THF and in the selective solvent dioxane. Before adding water, PEO104-b-PMBPS53 stayed as single polymer chains no matter what conformation the PEO block took (i.e.,...
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We report an extensive simulation study on the spontaneous formation of complex micelles from coilrod-coil amphiphilic triblock copolymers in dilute solution resulting from solvent selectivity. The amphiphilic molecule is built from one hydrophilic block on each side and a hydrophobic block in the middle. The rigidity of the rod block is introduced by adding a bond-bending potential of the angl...
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In this study, we synthesized amphiphilic poly(2,7–(9,9–dioctylfluorene))–block–N,N– (diisopropylamino)ethyl methacrylate (POF–b–PDPMAEMA) rod-coil diblock copolymers by atom transfer radical polymerization (ATRP). The structure and multifunctional sensing properties of these copolymers were also investigated. The POF rod segment length of 10 was fixed and the PDPAEMA coil segment lengths of 90...
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The effect of geometrical asymmetry β (described by the length-diameter ratio of rods) on the rod-coil diblock copolymer phase behavior is studied by implementation of self-consistent field theory (SCFT) in three-dimensional (3D) position space while considering the rod orientation on the spherical surface. The phase diagrams at different geometrical asymmetry show that the aspect ratio of rods...
متن کاملIsotropic-nematic phase transition in athermal solutions of rod-coil diblock copolymers.
We present a hybrid method to investigate the isotropic-nematic (I-N) transition in athermal solutions of rod-coil copolymers. This method incorporates the scaled-particle theory for semiflexible chains with two-chain Monte Carlo simulation for the osmotic second virial coefficient and for the angle-dependent excluded volume. We compare the theoretical prediction with Monte Carlo simulations fo...
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ژورنال
عنوان ژورنال: Chinese Journal of Polymer Science
سال: 2016
ISSN: 0256-7679,1439-6203
DOI: 10.1007/s10118-016-1763-y