title: One-pot preparation of 3D nano- and microaggregates via in situ nanoparticlization of polyacetylene diblock copolymers produced by ROMP.
abstract: Zero-dimensional (0D) nanospheres, 1D nanocaterpillars, and 3D aggregates are produced from simple diblock copolymers containing polyacetylene (PA) via in situ nanoparticlization of conjugated polymers. The diblock copolymers are prepared by ring-opening metathesis polymerization via one-pot sequential addition of an endo-tricyclo[4.2.2.0]deca-3,9-diene (TD) and cyclooctatetraene. Initially, they spontaneously form nanospheres consisting of a PA core and PTD shell, and increasing the length of the PA block leads to the direct nanoparticlization of the higher-dimensional structures such as 1D and 3D aggregates because of the decreased effective volume ratio of the rigid PTD shell to the solvophobic PA core.
authors: Department of Chemistry, Seoul National University, Seoul, 151-747, Korea.
authors: Ki-Young
authors: KY
authors: Yoon
authors: Department of Chemistry, Seoul National University, Seoul, 151-747, Korea.
authors: Suyong
authors: S
authors: Shin
authors: Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 305-764, Korea.
authors: Yong-Jae
authors: YJ
authors: Kim
authors: Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 305-764, Korea.
authors: Inhye
authors: I
authors: Kim
authors: Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 305-764, Korea.
authors: Eunji
authors: E
authors: Lee
authors: Department of Chemistry, Seoul National University, Seoul, 151-747, Korea.
authors: Tae-Lim
authors: TL
authors: Choi
mesh_terms: D018625:Microscopy, Atomic Force; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D053279:Polyynes / Q000737:chemistry
chemical_list: D011108:Polymers; D053279:Polyynes
keywords: 3D; conjugated polymers; nanostructures; polyacetylene; self-assembly