Monitoring the synthesis of new polymer nanocomposites based on different polyhedral oligomeric silsesquioxanes using Raman spectroscopy

2009 ◽  
Vol 40 (11) ◽  
pp. 1634-1640 ◽  
Author(s):  
Nicoleta Mihaela Sulca ◽  
Adriana Lungu ◽  
Sorina Alexandra Garea ◽  
Horia Iovu
Keyword(s):  
Raman Spectroscopy ◽  
Polymer Nanocomposites ◽  
Polyhedral Oligomeric Silsesquioxanes

Evaluation of multi-walled carbon nanotube concentrations in polymer nanocomposites by Raman spectroscopy

Carbon ◽  
2014 ◽  
Vol 76 ◽  
pp. 301-309 ◽  
Author(s):  
Giannis Bounos ◽  
Konstantinos S. Andrikopoulos ◽  
Theodoros K. Karachalios ◽  
George A. Voyiatzis
Keyword(s):  
Raman Spectroscopy ◽  
Carbon Nanotube ◽  
Polymer Nanocomposites ◽  
Multi Walled Carbon Nanotube

Synthesis and characterization of amorphous octakis-functionalized polyhedral oligomeric silsesquioxanes for polymer nanocomposites

Polymer ◽  
2008 ◽  
Vol 49 (18) ◽  
pp. 4017-4024 ◽  
Author(s):  
Yuung-Ching Sheen ◽  
Chu-Hua Lu ◽  
Chih-Feng Huang ◽  
Shiao-Wei Kuo ◽  
Feng-Chih Chang
Keyword(s):  
Polymer Nanocomposites ◽  
Synthesis And Characterization ◽  
Polyhedral Oligomeric Silsesquioxanes

Rheological Behavior of Polystyrene-Based Nanocomposite Suspensions under LAOS

2016 ◽  
Vol 851 ◽  
pp. 215-220
Author(s):  
Petr Lepcio ◽  
Frantisek Ondreas ◽  
Josef Jancar
Keyword(s):  
Polymer Nanocomposites ◽  
Rheological Behavior ◽  
Self Assembly ◽  
Thermomechanical Properties ◽  
Polyhedral Oligomeric Silsesquioxanes ◽  
Nanoscale Structures ◽  
Initial Stage ◽  
Large Amplitude Oscillation ◽  
Fundamental Research ◽  
Induced Changes

Polymer nanocomposites based on polyhedral oligomeric silsesquioxanes (POSS) and their solutions and suspensions are promising systems for fundamental research which could potentially utilize self-assembly approach in designing new nanocomposite materials. Numerous applications could benefit from understanding of these systems, for instance polymer solution based paints and varnishes. This work is an initial stage of a study which aim is to link macroscale thermomechanical properties with nanoscale structures found in polymer nanocomposites. To do so, a suitable experimental protocol for preparing differently organized NPs in polymer matrix has to be find first in which both kinetic and thermodynamical parameters should be taken into account, i.e. solution casting has being investigated. The results presented here found differences between nanoparticle induced changes on rheological behavior of polystyrene solution under large amplitude oscillation shear (LAOS). High-affinity OP-POSS NPs seem to interact with PS at low loadings and form stiffened aggregates, whereas low-affinity OM-POSS NPs remained rather uninvolved. Effect of hydrodynamic forces independent of the NPs chemical nature was also observed.

Enhanced Electrical Properties of PVDF-TrFE Nanocomposite for Actuator Application

2014 ◽  
Vol 605 ◽  
pp. 335-339 ◽  
Author(s):  
Kie Yong Cho ◽  
A Ra Cho ◽  
Yun Jae Lee ◽  
Chong Min Koo ◽  
Soon Man Hong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Raman Spectroscopy ◽  
Electrical Properties ◽  
Polymer Nanocomposites ◽  
Casting Process ◽  
Polymer Nanocomposite ◽  
Solution Casting ◽  
Electromechanical Properties ◽  
Actuator Application

Carbon nanotubes (CNTs) coated by compatibilizer (P3HT-PMMA) imparted sta-ble dispersion in organic solvents and polymer matrix (P(VDF-TrFE)). The compatibility be-tween CNTs with P3HT-PMMA was con rmed by measuring Raman spectroscopy. CoatedCNTs were then blended with P(VDF-TrFE) (70:30 mol%) to obtain polymer nanocompositesby solution- casting process. Polymer nanocomposites showed enhanced electrical characteris-tics, as nanocomposites near the threshold of the transition between P(VDF-TrFE) insulatorand CNT conductor revealed great improvement of electrical conductivity up to 10-6 S/cmat 1 KHz. Electromechanical properties of the polymer nanocomposite were examined as afunction of electric eld.

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