Microgels based on isotactic poly(styrene): Synthesis and characterization |
| |
| Authors: | Marie Tschage Klaus Beckerle Khosrow Rahimi Seungwhan Jung Stefan S‐H Chang Jörg Stellbrink Jun Okuda |
| |
| Institution: | 1. Institute of Inorganic Chemistry, RWTH Aachen University, Aachen, Germany;2. DWI Leibniz Institute for Interactive Materials at the RWTH Aachen University, Aachen, Germany;3. Forschungszentrum Jülich GmbH, Jülich Center for Neutron Science (JCNS) and Institute for Complex Systems (ICS), Jülich, Germany |
| |
| Abstract: | Poly(styrene) microgels are known, but the influence of tacticity on particle formation and behavior has not been investigated yet. Isotactic poly(styrene) (iPS) with Mn = 15–120 kg/mol is synthesized by coordinate polymerization and cross‐linked by Friedel–Crafts alkylation in a miniemulsion. Nuclear magnetic resonance (NMR) spectroscopy, light microscopy, cryogenic transmission electron microscopy, and wide‐angle powder diffraction are applied to understand the structure of microgels obtained. Typically, spherical microgels with overall diameter of 40–500 nm are found. Isotacticity of the polymer is retained during microgel formation. Increase of cross‐linker content leads to partial crystallinity inside the microgel. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017 , 55, 175–180 |
| |
| Keywords: | Friedel– Crafts alkylation isotactic poly(styrene) microgel miniemulsion postpolymerization modification |
|
|
