h Behniafar - Department o f chemistry, Damghan univer sity, ۳۶۷۱۵-۳۶ ۴, Damghan, Iran.
r Samiaa - Department o f chemistry, Damghan univer sity, ۳۶۷۱۵-۳۶ ۴, Damghan, Iran.
m Barzeg ar - Department o f chemistry, Damghan univer sity, ۳۶۷۱۵-۳۶ ۴, Damghan, Iran.

The inorganic-or ganic hybrid s are a pro mising class of new materials, owing to the advantageous prope rties of the polymer ma trix and th e embedded inorganic particles. The combinations often lead to synergistic effects, r esulting enh anced properties, making these materials applicable in various fields. c njugated polymers su ch as poly pyrrole(PPy ), polyanili ne(PANi), h ave been succssesfully combined with different ino rganic mate rials including metal na no particles (Ag, Au, Cu, a nd pd), leading to nanocomposites with high conductivity, catalytic a ctivity, ther moelectric prope rties[۱], etc. Polythiophene(PTh) as conducting polymer ha s attracted considerable attention over the past years due to numerous solid states p otential applications in many field s, such as microelectronic d evices, catalysts, organic field effect transi stors and chemical se nsors and biosen sors[۲]. A mong nanop rticles, silver nanopaticles have gained much interest due to its applications in catalysis, in conducting in k, as a substra in surface enhance R aman spectroscopy, in anticancer activit y, optical se nsor and as a potentia l antibacterial agent[۳]. In present work, Ag nanoparticle were synthes ized by reaction of silver nitrate(Ag NO۳) with sodium borhyride(NaBH۴ ).

Nanocomposite, Conjucated polymer, Polythiophene, Nanoparticle.