In-situ chemical synthesis of PANI dodecyl-benzene sulfonic acid doped vanadium pentoxide: Optical and electrical properties

2017 ◽  
Vol 2 (3) ◽  
pp. 184-188
Author(s):  
Niranjana M
2012 ◽  
Vol 616-618 ◽  
pp. 1675-1679
Author(s):  
Lei Zhao ◽  
Xing Xiang Zhang ◽  
Ning Wang

One-dimensional nanostructured polypyrrole (PPy) nanofibers were electrospun using a solution of PPy/polyvinyl alcohol (PVA); and PVA was used as the carrier in order to improve processability of PPy. In order to improve the performance of nanofibers, PPy were chemically synthesized by using different dopants, such as toluene sulfonate (TSNa), dodecyl-benzene sulfonic acid sodium salt (DBSNa), dodecyl sulfonic acid sodium salt (DSNa) and di-(2-ethylhexyl) sulfosuccinate sodium salt (DEHS). The morphology, structure and electrical conductivity of the fabricated nanofibers was investigated using SEM, FTIR and four-probe method, respectively. The results show that the diameters of doped PPy/PVA nanofibers are in the range of 50-190 nm. The electrical conductivity of the obtained doped PPy/PVA nanofibers was about 161-222 S/cm. DEHS doped PPy can not only make the obtained PPy be soluble in some organic solvents, but also improve the electrical conductivity of nanofibers when it is compared with that of TSNa, DSNa, DBSNa as dopants.


RSC Advances ◽  
2016 ◽  
Vol 6 (116) ◽  
pp. 115074-115084 ◽  
Author(s):  
M. Niranjana ◽  
L. Yesappa ◽  
S. P. Ashokkumar ◽  
H. Vijeth ◽  
S. Raghu ◽  
...  

This paper reports the localized polarons improves the morphology, thermal and electrical conductivity of dodecyl benzene sulfonic acid (DBSA) surfactant based polyaniline (PANI) – cobalt oxide (Co3O4) nano have synthesized by using in situ chemical reaction method.


Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1476 ◽  
Author(s):  
Dongliang Kuang ◽  
Zhou Ye ◽  
Lifeng Yang ◽  
Ning Liu ◽  
Zaihong Lu ◽  
...  

DBSA was used as a solubilizer together with conventional rejuvenator (CR) to produce a solubilized rejuvenator (SR), two kinds of aged bitumen involving TFOT aged bitumen and PAV aged bitumen were obtained by thin film oven test (TFOT) and pressurized aging vessel (PAV), respectively. Effects of CR and SR on the physical properties, chemical components, colloidal structure and micro-morphology of TFOT aged bitumen and PAV aged bitumen were investigated. Testing results of physical properties and chemical components indicated that CR and SR can replenish aged bitumen with necessary aromatics, TFOT aged bitumen that chemical component variation deteriorates its physical properties. With regard to PAV aged bitumen, of which the performance attenuation lies in chemical components variation and colloidal structure transformation, even if the content of CR reached up to 10 wt %, the regenerated bitumen cannot meet the regeneration requirement yet due to its definite influence on colloidal structure transformation, comparatively, sulfonic group in SR can react with the superficial atoms of asphaltenes to reform a solvation layer to facilitate the colloidal structure transformation of PAV aged bitumen, performance and beelike structure of regenerated PAV aged with bitumen with 10 wt % SR were approximated to that of virgin bitumen.


2016 ◽  
Vol 45 (12) ◽  
pp. 1221001
Author(s):  
张圣斌 Zhang Shengbin ◽  
左敦稳 Zuo Dunwen ◽  
卢文壮 Lu Wenzhuang

Sign in / Sign up

Export Citation Format

Share Document