PMID- 33043193 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201013 IS - 2470-1343 (Electronic) IS - 2470-1343 (Linking) VI - 5 IP - 39 DP - 2020 Oct 6 TI - Segregated Network Polymer Composites with High Electrical Conductivity and Well Mechanical Properties based on PVC, P(VDF-TFE), UHMWPE, and rGO. PG - 25148-25155 LID - 10.1021/acsomega.0c02859 [doi] AB - The formation of a segregated network structure (wittingly uneven distribution of a filler) is one of the most promising strategies for the fabrication of electrically conductive polymer composites at present. However, the simultaneous achievement of high values of electrical conductivity with the retention of well mechanical properties within this approach remains a great challenge. Here, by means of X-ray photoelectron spectra (XPS), near-edge X-ray absorption fine structure (NEXAFS) spectra, scanning electron microscopy (SEM), dielectric spectroscopy, and compression engineering stress-strain curve analysis, we have studied the effect of a segregated network structure on the electrical conductivity and mechanical properties of a set of polymer composites. The composites were prepared by applying graphene oxide (GO) with ultralarge basal plane size (up to 150 mum) onto the surface of polymer powder particles, namely, poly(vinyl chloride) (PVC), poly(vinylidene fluoride-co-tetrafluoroethylene) (P(VDF-TFE)), and ultrahigh-molecular-weight poly(ethylene) (UHMWPE) with the subsequent GO reduction and composite hot pressing. A strong dependence of the segregated network polymer composites' physical properties on the polymer matrix was demonstrated. Particularly, 12 orders of magnitude rise of the polymers' electrical conductivity up to 0.7 S/m was found upon the incorporation of the reduced GO (rGO). A 17% increase in the P(VDF-TFE) elastic modulus filled by 1 wt % of rGO was observed. Fracture strength of PVC/rGO at 0.5 wt % content of the filler was demonstrated to decrease by fourfold. At the same time, the change in strength was not significant for P(VDF-TFE) and UHMWPE composites in comparison with pure polymers. Our results show a promise to accelerate the development of new composites for energy applications, such as metal-free supercapacitor plates and current collectors of lithium-ion batteries, bipolar plates of proton-exchange membrane fuel cells, antistatic elements of various electronic devices, etc. FAU - Shiyanova, Kseniya A AU - Shiyanova KA AD - N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygina 4, Moscow 119991, Russia. FAU - Gudkov, Maksim V AU - Gudkov MV AD - N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygina 4, Moscow 119991, Russia. FAU - Gorenberg, Arkady Ya AU - Gorenberg AY AD - N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygina 4, Moscow 119991, Russia. FAU - Rabchinskii, Maxim K AU - Rabchinskii MK AD - Ioffe Institute, Politekhnicheskaya 26, Saint Petersburg 194021, Russia. FAU - Smirnov, Dmitry A AU - Smirnov DA AD - Institut fur Festkorper- und Materialphysik, Technische Universitat Dresden, Noreen Damme, Haeckelstrasse 3, 01069 Dresden, Germany. FAU - Shapetina, Maria A AU - Shapetina MA AD - Moscow Pedagogical State University, 1/1 M. Pirogovskaya, Moscow 119991, Russia. FAU - Gurinovich, Tatiana D AU - Gurinovich TD AD - Moscow Pedagogical State University, 1/1 M. Pirogovskaya, Moscow 119991, Russia. FAU - Goncharuk, Galina P AU - Goncharuk GP AD - Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Profsoyuznaya 70, Moscow 117393, Russia. FAU - Kirilenko, Demid A AU - Kirilenko DA AD - Ioffe Institute, Politekhnicheskaya 26, Saint Petersburg 194021, Russia. AD - ITMO University, 49 Kronverksky Pr., Saint Petersburg 197101, Russia. FAU - Bazhenov, Sergey L AU - Bazhenov SL AD - N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygina 4, Moscow 119991, Russia. FAU - Melnikov, Valery P AU - Melnikov VP AD - N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygina 4, Moscow 119991, Russia. LA - eng PT - Journal Article DEP - 20200923 PL - United States TA - ACS Omega JT - ACS omega JID - 101691658 PMC - PMC7542586 COIS- The authors declare no competing financial interest. EDAT- 2020/10/13 06:00 MHDA- 2020/10/13 06:01 PMCR- 2020/09/23 CRDT- 2020/10/12 05:33 PHST- 2020/06/15 00:00 [received] PHST- 2020/09/09 00:00 [accepted] PHST- 2020/10/12 05:33 [entrez] PHST- 2020/10/13 06:00 [pubmed] PHST- 2020/10/13 06:01 [medline] PHST- 2020/09/23 00:00 [pmc-release] AID - 10.1021/acsomega.0c02859 [doi] PST - epublish SO - ACS Omega. 2020 Sep 23;5(39):25148-25155. doi: 10.1021/acsomega.0c02859. eCollection 2020 Oct 6.