tailieunhanh - Synthesis and characterization of lauryl methacrylate - graft - polypropylene fiber

On the basis of a detailed investigation of these factor, the optimal conditions for the grafting of LMA onto PP with the said initiator were as follows: [AIBN] = mol/l, [LMA] = mol/l, reaction time 240 min, reaction temperature 80 oC, in which the graft yield (%GY) of % was obtained. Characterization of the polypropylene fiber-graft-lauryl methacrylate was done by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). | Journal of Science and Technology 54 (1A) (2016) 245-251 SYNTHESIS AND CHARACTERIZATION OF LAURYL METHACRYLATE – GRAFT - POLYPROPYLENE FIBER Hoang Thu Ha1,*, Le Thanh Son1, Nguyen Tien Dung2, Nguyen Thi Bich Viet2, Nguyen Van Khoi3 1 Faculty of Chemistry, Hanoi University of Science, VNU Hanoi, 19 Le Thanh Tong, Hanoi 2 Department of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi 3 Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi * Email: hoangthuha0105@ Received: 29 August 2015; Accepted for publication: 28 October 2015 ABSTRACT The graft polymerization of lauryl methacrylate (LMA) onto polypropylene fiber (PP) was investigated by using 2,2’-azobisisobutyronitrile (AIBN) as initiator. The grafting was influenced by AIBN concentration, monomer concentration, the reaction time and reaction temperature. On the basis of a detailed investigation of these factor, the optimal conditions for the grafting of LMA onto PP with the said initiator were as follows: [AIBN] = mol/l, [LMA] = mol/l, reaction time 240 min, reaction temperature 80 oC, in which the graft yield (%GY) of % was obtained. Characterization of the polypropylene fiber-graft-lauryl methacrylate was done by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Keywords: graft polymerization, polypropylene fiber, lauryl methacrylate. 1. INTRODUCTION Polypropylene (PP) fibers have been used for valuable purposes in different areas like textile, concrete and some chemical industries [1]. Despite their noticeable properties such as chemical and thermal stability, stiffness, low density, impact resistance and low material cost, however, PP fibers are restricted in their applications because of this polymer has some drawbacks: it does not contain any reactive site, it has extremely poor hygroscopicity, it is difficult to dye, it has low melting and sticking temperatures, it is sensitive to .