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All Journal Jurnal Tadris Kimiya JKPK (Jurnal Kimia dan Pendidikan Kimia) Jurnal Riset Sains dan Kimia Terapan International Journal of Social and Management Studies (IJOSMAS) Chemistry and Materials Satwika: Jurnal Pengabdian kepada Masyarakat PERDULI: Jurnal Pengabdian kepada Masyarakat
Afrizal Afrizal
Departement Of Chemistry Education, Faculty Of Mathematics And Sciences, Universitas Negeri Jakarta ,Jalan Rawamangun Muka, Jakarta 13220
Religion Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences Other

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Journal : JKPK (Jurnal Kimia dan Pendidikan Kimia)

 1 
Effect Concentrations of Polyethylene Glycol in Stability Structure of Blending Polymer Cholesteryl acrylate-ITO Afrizal Afrizal; Arif Rahman; Iwan Sugiharto; Muhammad Ismail
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 5, No 2 (2020): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v5i2.42502

Abstract

Polymer ChoAcry/ITO was added glycol is one of the material polymer liquid crystal modifications. In general polymer liquid crystal cholesteryl acrylate was made for many application usage in optoelectronics materials. This research want to study effect Polyethylene Glycol (PEG) in polymer choAcry/ITO for stability structure of blending choAcry/ITO. PEG 0.006 was added to mixed cholesteryl acrylate with ITO. Polymerizations that doing using UV curing photopolymerizations. Characterizations group functions using Fourier Transformed Infra Red (FTIR) and Nuclear Magnetic Resonance (NMR). Effect concentrations of PEG in PolyChoAcry-ITO shown from FTIR spectrum, shown not different. Peak in spectrum showed are C=C and C-H aliphatic, C=C aromatic, C-O ester, and para-benzene. Based on data FTIR that PE-b-PEG not change structures. Therefore, diffractogram of XRD, showed added ITO and PEG can be affect phisycal and chemistry properties of polymer cholestryl acrylate. This data showed PEG changed structures of polymer. Polyethilene glycol spreading into polymer cholesteryl acrylate. In the literatures told that PEG can be conjunctionc between that monomer or polymer cholesteryl acrylate-ITO.
Analysis Thin Film Polymer Composite of Polymethyl Metacrylate-Reactive Mesogen Diacrylate and its Conductivity Properties Afrizal Afrizal; Setia Budi; Annisa Ambarwati; Asep Riswoko
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 8, No 1 (2023): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v8i1.72492

Abstract

This study aimed to investigate the impact of temperature during the UV curing process on the formation of a thin film polymer composite composed of polymethyl methacrylate-reactive mesogen diacrylate. The thin film polymer composite was successfully synthesized using the UV curing method, and the reactive mesogen diacrylate employed in this study was RM 82. Methyl methacrylate and RM 82 were polymerized through UV curing with photopolymerization additions using Benzoyl Peroxide as the initiator. The photopolymerization process was performed at various temperatures of 125℃, 150℃, and 200℃ for 5 minutes. The thin film photopolymerized at 125℃ and 150℃ exhibited greater transparency than the thin film photopolymerized at 200℃. The FTIR results indicated the breakdown of the vinyl group and the triple bond. The FTIR spectrum displayed successful polymerization, with peak wave numbers of 1147 cm-1 and 1221 cm-1 for PMMA in the presence of C-O-C in the ester and a peak at 1465 cm-1. The SEM results demonstrated that the thin film photopolymerized at 200℃ had become distorted. The XRD results revealed that the thin films of all variations were semi-crystalline. Meanwhile, the conductivity test revealed that the thin film photopolymerized at 125℃ had a conductivity value of 2.095 x 10-12 S, while the photopolymerized thin film at 150℃ had a conductivity of 2.14 x 10-12 S. Hence, the addition of reactive mesogen RM82 by 50% may increase the conductivity value of the thin film, making it a potential material for applications as a thin film polymer composite of PMMA-RM 82.
Co-Authors Agung Purwanto Ahmad Zaini Assidiqih Alin Mardiah Annisa Ambarwati Arif Rahman Arif Rahman Asep Riswoko Djunaidi Djunaidi Eka Fitrianingsih Eneng Retnisa Sriutami Icha Ananda Nainggolan Irwanto Irwanto Iwan Sugiharto Mela Puspitasari Mindarto Muhamad Mulyadi Muhammad Ismail Paristiowati, Maria Ratu Husmiati Setia Budi Sri Martini Syauqi Faizka Ramadhani Triyana Wahyu Setyorini Widya Putri Yuli Rahmawati Yusmaniar Zulmanelis Darwis,