TITLE:
Preparation and Characterization of Functionalized Polypropylene with Acrylamide and Itaconic Acid
AUTHORS:
A. R. Oromiehie, H. Ebadi-Dehaghani, K. Ansari, K. Karimi, Z. Rahmani, S. Mirbagheri
KEYWORDS:
Functionalized Polypropylene, Acryl Amide, Itaconic Acid, FT-IR, Contact Angle
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.2 No.10,
October
28,
2014
ABSTRACT: Functionalized polypropylene with acryl
amide (AAm) and itaconic acid (IA) were prepared in the molten state in the
presence of dicumyl peroxide. The effects of the concentration of both mono- mers
on the degree of functionalization and properties of the products were investigated
by FT-IR, contact angle measurement and DSC analysis. It was found that the
degree of functionalization depends on the initial concentration of both
monomers that used in the reaction. The influence of the AAm and IA content on
the melting and crystallization temperature of PP was investigated by DSC. The
contact angle of water on film surfaces of the functionalized PP (PP-g-AAm and
PP-g-IA) decreased with increasing modified polymer content. From FT-IR spectra
of functionalized PP a calculation was made of carbonyl index on the films
surfaces. It was found that the higher intensity of the carbonyl index, the
lower contact angle value and the lower crystallinity confirmed the ex- istence
of functionalized AAm and/or IA in PP. It was concluded from the different
characteriza- tion methods that the polarity and percentage of functionalized
PP were increased up to 3 phr for both monomers, and then it was decreased by
increasing the amount of monomers and had a threshold value, due to nucleating
agents of monomers in PP.