PMID- 27847954
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180130
LR  - 20180130
IS  - 1463-9084 (Electronic)
IS  - 1463-9076 (Linking)
VI  - 18
IP  - 47
DP  - 2016 Nov 30
TI  - Conductivity and phase morphology of carbon black-filled immiscible polymer 
      blends under creep: an experimental and theoretical study.
PG  - 32125-32131
AB  - Blends of carbon black (CB)-filled co-continuous immiscible 
      polystyrene/poly(methyl-methacrylate) (PS/PMMA) with a PS/PMMA ratio of 50/50 and 
      CB selectively located in the PS phase have been prepared by melt blending. The 
      simultaneous evolution of conductivity and phase morphology of blend composites 
      was investigated under shear and in the quiescent state at 200  degrees C. It was found 
      that shear deformation had a significant influence on the conductivity of the 
      unfilled PS/PMMA blend and its composites, which was attributed to the change of 
      phase morphology during shear. After the shear stress of 10 kPa, the conductivity 
      of PS/PMMA blends filled with 2 vol% of CB decreased by about two orders of 
      magnitude and the phase morphology transformed from a fine co-continuous 
      structure into a highly elongated lamellar structure. The deformation of phase 
      morphology and the decrease of conductivity were weakened upon decreasing the 
      shear stress or increasing the CB concentration. During subsequent recovery, 
      pronounced phase structure coarsening was observed in the mixture and the 
      conductivity increased as well. A simple model describing the behavior of 
      conductivity under shear deformation was derived and utilized for the description 
      of the experimental data. For the first time, the Burgers model was used to 
      describe the conductivity, and the viscoelastic and viscoplastic parameters were 
      deduced by fitting the conductivity under shear. The results obtained in this 
      study provide a deeper insight into the evolution of phase structure in the 
      conductive polymer blend composite induced by shear deformation.
FAU - Pan, Yamin
AU  - Pan Y
AD  - Institute of Polymer Materials, Friedrich-Alexander University 
      Erlangen-Nuremberg, Martensstr. 7, 91058 Erlangen, Germany. xianhu.liu@fau.de 
      dirk.schubert@fau.de.
FAU - Liu, Xianhu
AU  - Liu X
AUID- ORCID: 0000-0002-4975-3586
AD  - Institute of Polymer Materials, Friedrich-Alexander University 
      Erlangen-Nuremberg, Martensstr. 7, 91058 Erlangen, Germany. xianhu.liu@fau.de 
      dirk.schubert@fau.de.
FAU - Hao, Xiaoqiong
AU  - Hao X
AD  - School of Science, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
FAU - Schubert, Dirk W
AU  - Schubert DW
AD  - Institute of Polymer Materials, Friedrich-Alexander University 
      Erlangen-Nuremberg, Martensstr. 7, 91058 Erlangen, Germany. xianhu.liu@fau.de 
      dirk.schubert@fau.de.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Phys Chem Chem Phys
JT  - Physical chemistry chemical physics : PCCP
JID - 100888160
EDAT- 2016/11/17 06:00
MHDA- 2016/11/17 06:01
CRDT- 2016/11/17 06:00
PHST- 2016/11/17 06:00 [pubmed]
PHST- 2016/11/17 06:01 [medline]
PHST- 2016/11/17 06:00 [entrez]
AID - 10.1039/c6cp06175c [doi]
PST - ppublish
SO  - Phys Chem Chem Phys. 2016 Nov 30;18(47):32125-32131. doi: 10.1039/c6cp06175c.