Conductivity and free volume studies on bismuth sulfide/PVA:polypyrrole nanocomposites

Comparative Study on Structural, Dielectric Behavior and AC Conductivity of PPY-PVA Incorporated with TiO2 Fine and Nano Particles

“…It was observed that Dielectric constants of PPY-PVA-fine TiO 2 composites are large at lower frequency region which could be due to polarization effect. 22,[33][34][35][36][37][38][39][40][41][42][43][44][45][46] The Dielectric plot revealed that Dielectric constants were decreased with increase in frequency and attained almost constant value which could be due to lack of charge response for applied frequency at higher frequency region (Maxwell-Wagner polarization). 42,43 Dielectric polt established that Dielectric constants have been increased with increase in concentration of TiO 2 fine particles this might be due to high density and existance of polron and bi-polaron states.…”

“…5,[15][16][17][18][19][20][21] Author has taken up further investigation on PPY-PVA blends with TiO 2 fine and nano particles as dopant for commercial applications. 22…”

Preparation and Characterization of Zein-Based Nanoparticles via Ring-Opening Reaction and Self-Assembly as Aqueous Nanocarriers for Pesticides

“…It can be observed that the average particle size increased with the increase of zein addition and the absolute value of zeta potential decreased but not obviously, which implied the excellent colloidal stability of the Zein-EGDE/DEA solution. Indeed, when EGDE conjugates with the amino group of zein, the hydrogen bonding existing in the zein’s parallel structure was somehow destructed . Thus, the more severe such destruction, the fewer of zein addition because the amount of EGDE was constant, which promoted single zein molecules separate more easily and particle size become smaller.…”

“…Indeed, when EGDE conjugates with the amino group of zein, the hydrogen bonding existing in the zein's parallel structure was somehow destructed. 31 Thus, the more severe such destruction, the fewer of zein addition because the amount of EGDE was constant, which promoted single zein molecules separate more easily and particle size become smaller.…”