Bicontinuous Block Copolymer Morphologies Produced by Interfacially Active, Thermally Stable Nanoparticles
نویسندگان
چکیده
Bicontinuous Block Copolymer Morphologies Produced by Interfacially Active, Thermally Stable Nanoparticles Se Gyu Jang, Bumjoon J. Kim, Craig J. Hawker,* and Edward J. Kramer* Materials Research Laboratory, Department ofMaterials, Department of Chemistry and Biochemistry, and Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Republic of Korea
منابع مشابه
Nanoparticle surfactants as a route to bicontinuous block copolymer morphologies.
The surface chemistry of nanoparticles can be modified so that these particles behave like surfactants and localize at interfaces between two fluids. We demonstrate that small volume fractions phi(P) of such surfactant nanoparticles added to lamellar diblock copolymers lead initially to a decrease in lamellar thickness with phi(P), a consequence of decreasing interfacial tension, up to a critic...
متن کاملReal-space evidence of the equilibrium ordered bicontinuous double diamond structure of a diblock copolymer.
The ordered bicontinuous double diamond (OBDD) structure has long been believed to be an unstable ordered network nanostructure, which is relative to the ordered bicontinuous double gyroid (OBDG) structure for diblock copolymers. Using electron tomography, we present the first real-space observation of the thermodynamically stable OBDD structure in a diblock copolymer composed of a stereoregula...
متن کاملWell Ordered Polymer Melts from Blends of Disordered Triblock Copolymer Surfactants and Functional Homopolymers
Microphase segregated block copolymer melts and solids have long garnered significant scientific interest due to their ability to spontaneously form periodic morphologies at controllable length scales. Their utility as stand-alone nanostructured functional materials or as templates for the fabrication of hierarchical solids is well documented. However, their deployment in large scale applicatio...
متن کاملCascade Molecule−Particle−Molecule Self-Assemblies for Fabricating Narrowly Size-Distributed Polymeric Superparticles with a Bicontinuous Nanostructure
Broader developments of nanoscience and nanotechnology require complexly but regularly structured nanoparticles whose fabrications in turn pose a great challenge to nanoscience and nanotechnology. In this communication, we report a new and robust method with a clear mechanism for fabricating narrowly size-distributed superparticles with a bicontinuous inner structure. The processes for the fabr...
متن کاملUse of complementary nucleobase - containing synthetic polymers to prepare complex self - assembled morphologies in water †
Amphiphilic nucleobase-containing block copolymers with poly(oligo(ethylene glycol) methyl ether methacrylate) as the hydrophilic block and nucleobase-containing blocks as the hydrophobic segments were successfully synthesized using RAFT polymerization and then self-assembled via solvent switch in aqueous solutions. Effects of the common solvent on the resultant morphologies of the adenine (A) ...
متن کامل