Journal ArticleDOI
Multiple Morphologies of "Crew-Cut" Aggregates of Polystyrene-b-poly(acrylic acid) Block Copolymers.
Lifeng Zhang,Adi Eisenberg +1 more
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TLDR
A needle-like solid is obtained on drying of aqueous solutions of the spherical micelles of the highly asymmetric polystyrene-poly-(acrylic acid) block copolymers prepared in a low molecular weight solvent system.Abstract:
The observation by transmission electron microscopy of six different stable aggregate morphologies is reported for the same family of highly asymmetric polystyrene-poly-(acrylic acid) block copolymers prepared in a low molecular weight solvent system. Four of the morphologies consist of spheres, rods, lamellae, and vesicles in aqueous solution, whereas the fifth consists of simple reverse micelle-like aggregates. The sixth consists of up to micrometer-size spheres in aqueous solution that have hydrophilic surfaces and are filled with the reverse micelle-like aggregates. In addition, a needle-like solid, which is highly birefringent, is obtained on drying of aqueous solutions of the spherical micelles. This range of morphologies is believed to be unprecedented for a block copolymer system.read more
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Self-assembly of block copolymers
Yiyong Mai,Adi Eisenberg +1 more
TL;DR: The present tutorial review introduces the primary principles of BCP self-assembly in bulk and in solution by describing experiments, theories, accessible morphologies and morphological transitions, factors affecting the morphology, thermodynamics and kinetics, among others.
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Micellar nanocarriers: pharmaceutical perspectives.
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Structure and design of polymeric surfactant-based drug delivery systems.
TL;DR: The review concentrates on the use of polymeric micelles as pharmaceutical carriers and the basic mechanisms underlying micelle longevity and steric protection in vivo are considered with a special emphasis on long circulating drug delivery systems.
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Properties and emerging applications of self-assembled structures made from inorganic nanoparticles
TL;DR: Different strategies for nanoparticle self-assembly, the properties of self-assembled structures of nanoparticles, and potential applications of such structures are reviewed.
Journal ArticleDOI
Block copolymer micelles: preparation, characterization and application in drug delivery.
Geneviève Gaucher,Marie-Hélène Dufresne,Vinayak Sant,Ning Kang,Dusica Maysinger,Jean-Christophe Leroux +5 more
TL;DR: The innovations in block copolymer synthesis, polymeric micelle preparation and characterization, as well as the relevance of these developments to the field of biomedical research are proposed.
References
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Journal ArticleDOI
Complex Phase Behavior of Polyisoprene-Polystyrene Diblock Copolymers Near the Order-Disorder Transition
Stephan Förster,Ashish K. Khandpur,Jin Zhao,Frank S. Bates,Ian W. Hamley,Anthony J. Ryan,Wim Bras +6 more
TL;DR: The phase behavior of polyisoprene-polystyrene (PI-PS) diblock copolymers near the order disorder transition was investigated using dynamic mechanical measurements, TEM, SAXS and SANS at polyisoperene volume fractions 0.33 < F PI < 0.42 as discussed by the authors.
Related Papers (5)
Multiple Morphologies and Characteristics of “Crew-Cut” Micelle-like Aggregates of Polystyrene-b-poly(acrylic acid) Diblock Copolymers in Aqueous Solutions
Lifeng Zhang and,Adi Eisenberg +1 more