Compatibilization of polyetherimide/liquid crystalline polymer blend using modified multiwalled carbon nanotubes and polyphosphazene as compatibilizers

2011 ◽  
Vol 124 (1) ◽  
pp. 629-637 ◽  
Author(s):  
Ganesh C. Nayak ◽  
Sumanta Sahoo ◽  
Sukanta Das ◽  
G. Karthikeyan ◽  
Chapal K. Das ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Polymer Blend ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Multiwalled Carbon

Lasing actions from a liquid crystalline polymer blend

2001 ◽  
Vol 393 (1-2) ◽  
pp. 92-96 ◽  
Author(s):  
Tae-Woo Lee ◽  
O Ok Park ◽  
Hyun Nam Cho ◽  
Dong Young Kim ◽  
Chung Yup Kim ◽  
...  
Keyword(s):  
Polymer Blend ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer

Covalent functionalization of carbon nanotubes for ultimate interfacial adhesion to liquid crystalline polymer

Soft Matter ◽  
2011 ◽  
Vol 7 (19) ◽  
pp. 9505 ◽  
Author(s):  
Nanda Gopal Sahoo ◽  
Henry Kuo Feng Cheng ◽  
Hongqian Bao ◽  
Yongzheng Pan ◽  
Lin Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Interfacial Adhesion ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Covalent Functionalization ◽  
Functionalization Of Carbon Nanotubes

In-situ elastomer composite based on fluorocarbon elastomer/liquid crystalline polymer blend

2005 ◽  
Vol 11 (8-9) ◽  
pp. 657-672 ◽  
Author(s):  
E. Shivakumar ◽  
C. K. Das ◽  
K. N. Pandey ◽  
S. Alam ◽  
G. N. Mathur
Keyword(s):  
Polymer Blend ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer

Morphology of Polyamideliquid Crystalline Polymer Blend

1990 ◽  
Vol 215 ◽  
Author(s):  
K. Nishii ◽  
M. Usui ◽  
T. Muraya ◽  
K. Kimura
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
Polymer Blend ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Polymer Structure ◽  
High Mechanical Strength ◽  
Blend Morphology ◽  
The Relationship

Polymer blend technology is attractive from the standpoint of both science and industry, and many combinations have been studied. Recently, the polymer blends, including liquid crystalline polymer, have been especially worthy of notice, [1,2,3]. In order to obtain materials with a high mechanical strength and moldability for use in thin molded items, we chose polyamide (PA)-liquid crystalline polymer (LCP) blends. In this study, we first measured the mechanical properties, then studied the features of the polymer structure. We also examined the relationship between morphology and mechanical properties. As a result, we found that the mechanical properties of the blends depended largely on blend morphology, and that mechanical strength increased as blend compatibility increased. On the other hand, we also found that the blends showed compatible and microheterogeneous dispersion at less than 25 wt% LCP, while at more than 30 wt% LCP, blends tended to show twophase separation.

scholarly journals Electrically Conductive Compounds of Polycarbonate, Liquid Crystalline Polymer, and Multiwalled Carbon Nanotubes

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Penwisa Pisitsak ◽  
Rathanawan Magaraphan ◽  
Sadhan C. Jana
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Multiwalled Carbon ◽  
Electrical Percolation ◽  
Twin Screw ◽  
Electrical Percolation Threshold ◽  
In Parenthesis

A thermotropic liquid crystalline polymer (LCP) was blended with polycarbonate (PC) and multiwalled carbon nanotube (CNT) with the goal of improving electrical conductivity and mechanical properties over PC. The LCP was anticipated to produce fibrillar domains in PC and help improve the mechanical properties. The study was carried out using two grades of LCP—Vectra A950 (VA950) and Vectra V400P (V400P). The compounds contained 20 wt% LCP and 0.5 to 15 wt% CNT. The compounds were prepared by melt-blending in a twin-screw minicompounder and then injection molded using a mini-injection molder. The fibrillar domains of LCP were found only in the case of PC/VA950 blend. However, these fibrils turned into droplets in the presence of CNT. It was found that CNT preferentially remained inside the LCP domains as predicted from the value of spreading coefficient. The electrical conductivity showed the following order with the numbers in parenthesis representing the electrical percolation threshold of the compounds: PC/CNT (1%) > PC/VA950P/CNT (1%) > PC/V400P/CNT (3%). The storage modulus showed improvements with the addition of CNT and VA950.

Micro Orientation and Anisotropy of Conductivity in Liquid Crystalline Polymer Films Filled with Carbon Nanotubes

2005 ◽  
Vol 5 (10) ◽  
pp. 1651-1655 ◽  
Author(s):  
V. N. Bliznyuk ◽  
S. Singamaneni ◽  
R. L. Sanford ◽  
D. Chiappetta ◽  
B. Crooker ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Polymer Films ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer
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