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Electrical and Electromagnetic Characteristics of Poly (Methyl Methacrylate)/Polyaniline PMMA/PANi Conductive Film
Helyati Abu Hassan Shaari1, Muhammad Mahyiddin Ramli2, Mohd Nazim Mohtar3, Norizah Abdul Rahman4, Azizan Ahmad5, Nurul Huda Osman6.
In this study, a conductive film of poly (methyl methacrylate)/polyaniline (PMMA/PANi) was fabricated through a free radical copolymerization reaction using methyl methacrylate (MMA) and aniline monomers at different aniline-to-MMA ratios, namely, 1:1, 1:3, and 1:5. The PMMA/ PANi copolymer films exhibited a total electromagnetic interference (EMI) shielding effectiveness (SET) of 0.45, 0.60, and 1.22 dB, respectively, which is more than twice that of the pure PMMA film (0.16 dB). The copolymer films possess the highest conductivity of 2.34 x 10−6 S/cm at the optimum value of aniline for films polymerized with a 1:3 PMMA:PANi ratio. Higher conductivity materials exhibited lower resistance and, thus, absorbed more EM energy, resulting in better EMI shielding.
Affiliation:
- Universiti Teknologi MARA Cawangan Perlis, 02600 Arau,Perlis, Malaysia, Malaysia
- Universiti Malaysia Perlis (UniMAP), 01000 Kangar, Perlis, , Malaysia
- Universiti Malaysia Perlis (UniMAP), 01000 Kangar, Perlis, , Malaysia
- Universiti Malaysia Perlis (UniMAP), 01000 Kangar, Perlis, , Malaysia
- Universiti Kebangsaan Malaysia (UKM) 43600, Bangi, Selangor, Malaysia, Malaysia
- Universiti Putra Malaysia 43400 Serdang, Selangor, Malaysia
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