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Anisotropic Nanoparticles with Controllable Morphologies from Non‐Cross‐Linked Seeded Emulsion Polymerization
Author(s) -
Niu Qun,
Pan Mingwang,
Yuan Jinfeng,
Liu Xiao,
Wang Xiaomei,
Yu Haifeng
Publication year - 2013
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201300431
Subject(s) - copolymer , emulsion polymerization , nanoparticle , materials science , polymerization , polymer , polymer chemistry , styrene , chemical engineering , methacrylate , methyl methacrylate , emulsion , morphology (biology) , composite number , surface modification , nanotechnology , composite material , biology , engineering , genetics
A simple and elegant approach to fabricate anisotropic P(VC‐ co ‐AAEM)/PS nanoparticles with controllable morphologies via emulsifier‐free seeded emulsion polymerization is presented. Non‐cross‐linked P(VC‐ co ‐AAEM) seeds with hydrophilic surface are first synthesized through copolymerization of vinyl chloride (VC) and acetoacetoxyethyl methacrylate (AAEM), which are used to prepare P(VC‐ co ‐AAEM)/PS NPs with multiple bulges by SEP of styrene. Electron microscopy observation indicates that the content of AAEM in seeds is crucial to control the phase separation and morphology of the composite NPs. Moreover, the thermodynamic immiscibility between PVC and PS is the driving force for the formation of PS bulges onto the P(VC‐ co ‐AAEM) seeds. The resultant anisotropic NPs with non‐cross‐linked feature may promisingly serve as compatibilizers for further polymer processing.