The Role of Partially Hydrolyzed Polyvinyl Alcohol to the Enhancement of the Electrical Conductivity of Conductive Polymer

  • Hafizah M
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Abstract

This is the report of preliminary studies on the properties of polymerization solution containing 1, 5, and 10% polyvinyl alcohol (PVA). The degree of polymerization was divided into three categories of respectively low, medium, and high. The pH value of all solutions was found almost similar, which approximately in the range 5.0-6.5. While the viscosity exhibited values in the range 1.20-1985 mPa s depends on the concentration and the degree of polymerization. The lower solid content evaluation indicated a faster dissolution rate of PVA when compared with those of medium and high. The PVA dissolves completely in less than 10, 180, and 220 minutes for 1, 5, and 10% of the solution, respectively. The solid content, which is the indicator of the solubility property of solution has resulted in a deviation of less than 0.1% between that of experimental and theoretical for each concentration. This report also discusses thin film properties, including the electrical conductivity value of each PVA solution against time during the dissolving process. Penelitian ini merupakan studi pendahuluan tentang sifat-sifat larutan polimer yang mengandung 1, 5 dan 10% polivinil alkohol (PVA). Tingkat polimerisasi dibagi menjadi tiga kategori masing-masing rendah, sedang dan tinggi. Nilai pH dari semua larutan ditemukan hampir serupa, yaitu kisaran 5,0-6,5. Sementara viskositas menunjukkan nilai dengan kisaran 1,20-1985 mPa s tergantung pada konsentrasi dan tingkat polimerisasi. Hasil analisis kandungan padatan yang rendah menunjukkan laju penguraian PVA yang lebih cepat jika dibandingkan dengan yang sedang dan tinggi. PVA larut seluruhnya dalam waktu kurang dari 10, 180 dan 220 menit masing-masing untuk 1, 5 dan 10% dari larutan. Kandungan padat, yang merupakan indikator sifat kelarutan, telah menghasilkan penyimpangan kurang dari 0,1% antara eksperimental dan teoritis untuk setiap konsentrasi. Penelitian ini juga membahas sifat-sifat film tipis, termasuk nilai konduktivitas listrik dari setiap larutan PVA terhadap waktu selama proses pelarutan.

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APA

Hafizah, M. A. E. (2019). The Role of Partially Hydrolyzed Polyvinyl Alcohol to the Enhancement of the Electrical Conductivity of Conductive Polymer. Majalah Polimer Indonesia, 22(2). https://doi.org/10.37889/mpi.2019.22.2.2

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