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All Journal Elkawnie Jurnal Tadris Kimiya BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Jurnal Penelitian Pendidikan IPA (JPPIPA) EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA Martabe : Jurnal Pengabdian Kepada Masyarakat PeTeKa NUSANTARA : Jurnal Ilmu Pengetahuan Sosial Eksakta : Berkala Ilmiah Bidang MIPA Bahastra: Jurnal Pendidikan Bahasa dan Sastra Indonesia Budapest International Research in Exact Sciences (BirEx Journal) Syifaul Qulub: Jurnal Bimbingan dan Konseling Islam Jurnal Abdi Mas Adzkia Jurnal Jeumpa Jurnal Olahraga dan Kesehatan Indonesia (JOKI) CHEDS: Journal of Chemistry, Education, and Science Research and Development in Education (RaDEn) Amare Indonesian Research Journal on Education Indonesian Counseling and Psychology Marpokat: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat SAPANGAMBEI MANOKTOK HITEI
Fatma Suryani Harahap
Universitas Muhammadiyah Tapanuli Selatan
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Graft Copolymerization of Natural Rubber With Functionalized Glycidyl Methacrylate Via Thermal and Free Radical Initiation: Effect of Processing Temperatures and Times Nasirsah Nasirsah; Fatma Suryani Harahap; Muhammad Darwis; Iskandar Safri Hasibuan; Syahruddin Aritonang
Elkawnie Vol. 11 No. 1 (2025)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v11i1.23784

Abstract

Abstract: As an unsaturated elastomer, the natural rubber (NR) is difficult to maintain adhesivity with the other additive materials, limiting their use during the process of manufacturing. Therefore, it is necessary to modify the surface to improve thermal and oxidative resistance. This study aims to modify the natural rubber through a functionalization of glycidyl methacrylate (GMA) and its effect on temperatures and times during processing. Functionalization of NR was carried out via free radical initiation by varying the working times and temperatures. Characterizations via FTIR were performed to confirm the functional groups of NR and functionalized NR, while the analysis of grafting was carried out to describe the propose proposed reaction mechanisms. FTIR spectra confirmed the presence of functional groups contributing to NR including stretching O-H of peptide group (3285 cm-1), stretching and absorption of CH3 (respectively 2725 cm-1 and 1456 cm-1), and functionalized GMA were observed after functionalization (1730 cm-1). Working times and temperatures allowed the GMA to disperse evenly, resulting higher chance of homo-polymerisation via crosslinking of poly-GMA, optimum at 160-190oC. In conclusion, the thermal initiation process at the optimum temperature allows the maximum grafting degree of GMA on NR, reaching up to 80% at 170°C, and results in a much more stable reaction through free radical initiation. Abstrak: Sebagai salah satu elastomer tak jenuh, karet alam (NR) terbatas dalam menjaga kemampuan daya rekatnya dengan bahan aditif lain, sehingga membatasi penggunaan praktisnya dalam proses manufaktur. Oleh karena itu, diperlukan modifikasi khususnya di permukaan untuk meningkatkan ketahanan terhadap panas dan oksidasi. Penelitian ini bertujuan untuk memodifikasi NR melalui fungsionalisasi clycidyl metacrylate (GMA) dan mengkaji pengaruh suhu dan waktu selama proses fungsionalisasi berlangsung. Fungsionalisasi NR diinisiasi melalui radikal bebas dengan variasi waktu dan suhu reaksi. Karakterisasi menggunakan FTIR dilakukan untuk mengkonfirmasi keberadaan gugus fungsi pada NR dan NR-terfungsionalisasi, sedangkan analisis grafting dilakukan untuk menjelaskan mekanisme reaksi yang diusulkan. Spektra FTIR menunjukkan adanya gugus fungsi pada NR berupa regangan O–H (3285 cm⁻¹), regangan dan serapan CH₃ (masing-masing pada 2725 cm⁻¹ dan 1456 cm⁻¹), serta munculnya puncak khas GMA-terfungsionalisasi pada 1730 cm⁻¹. Variasi waktu dan suhu reaksi memungkinkan terjadinya dispersi GMA yang lebih merata, meningkatkan peluang terjadinya homopolimerisasi melalui ikatan silang poli-GMA, pada suhu 160–190°C. Secara keseluruhan, proses inisiasi termal pada suhu optimum menghasilkan derajat grafting maksimum GMA pada NR hingga 80% pada 170°C, serta menghasilkan reaksi yang lebih stabil melalui mekanisme inisiasi radikal bebas.  
Co-Authors A. Simbolon, Yessika Abror, Rifki Abubakar Abubakar Abubakar Abubakar Abubakar Abubakar Abubakar Abubakar Ade Isma Hasibuan Adelina, Putri Adi Syaputra Adi Syaputra Adriany, Devi Adriany, Devi Agustina Lubis, Fitri Aisah Bukit, Paradhita Alfiansyah Halomoan Siregar Ali Pratama Bayur Siregar, Rizdy Amanda, Dea Andes Fuady Dharma Harahap Andes Fuady Harahap, Andes ANDINI, INTAN Anggie Pratama Pane, Gerry Arfah, Laila Asmaryadi Asmaryadi Asmaryadi Asmaryadi Asmaryadi Asmaryadi, Asmaryadi Atifah, Yusni Ayunda Sabrina Sormin, Ayunda Sabrina Azhari, Kautsar Azizah Lubis, Jalilah Baiduri Baiduri Benny Sofyan Samosir Cristian Tambunan, Michael Damayanti, Dina Dea Amanda Devi Adriany Dewi Purnamasari, Editha Dhini Harahap, Rahma Dinda Yunita Djoko Widodo Dongoran, Awaluddin Efendi, Irpan Eko Susetyarini Elisa Elisa Elisa Elisa Elisa Elisa Elisa Elly Purwanti Elly Purwanti Elsiana, Elsiana Eny Maya Sari Fauzan Habibie Nasution Fitri Agustina Lubis Fitriani Fitriani Fuady Dharma Harahap, Andes Hafni Junita Harahap Hafnita Juni Harahap Halawa, Fiska Hamid Marpaung, Paisal Hamonangan Duha, Elia Hanafiah Nasution, Muhammad Nizar Harahap, Mita Lestari Harahap, Safran Efendi harahap, Yunus Harlem Marpaung Hasibuan, Emdra Syapudra Hasibuan, Iskandar Safri Hasibuan, Jeni Yanti Hasibuan, Nikmah Sari Heni Mulyani Pohan Heni Mulyani Pohan Heni Mulyani Pohan Heni Mulyani Pohan Hotrina Sitompul Hrp, Hafnita Ibrahim Ibrahim Imelda Sari Harahap Irmalia Fitri Siregar Irman Puansah Iskandar Safri Hasibuan Iskandar Safri Hasibuan Ismensa, Martua Jalilah Azizah Jalilah Azizah Lubis Janna Khairani Pardede Junita, Hafni LAILA TUSSIFAH LUBIS Laila Tussifah Lubis Laila Tussifah Lubis Lubis, Nur Afifah LUBIS, NURHALIMAH Mabrouk, Anouar Ben Mahendra Harahap, Maisya Mariska, Revi Martina Martina Martina Martina Masdelima Azizah Sormin Matondang, Anas Munandar Maya Sari, Eny Melvariani Syari Batubara Melvariani Syari Batubara Mita Lestari Harahap Muhammad Darwis Muhammad Rusdi Mukti Simamora Mulyani Pohan, Heni Mutiara Astari Muttaqin Kholis Ali Nasirsah Nasution, Fauzan Habibie Nasution, Fauzan Habibie Nasution, Putri Auliani Nia Kurniaty Rukman Nur Afifah Lubis Nur Latifah, Nur Nur Sahara Nur Sahara Nurhalimah, Msy Nurhalimah, Msy. Nurhasana, Nurhasana Nurkholidah Siregar Nurmaini Ginting Nurmaini Ginting Nurmi, Aisyah Nursahara Pardede Paisal Hamid Marpaung Pardede, Janna Khairani Pohan, Ade Rahmi Dani Purba, Happy Sri Rezeki Putri Siregar, Anggina Tiara Rabiyatul Adawiyah Siregar Rabiyatul Adawiyah Siregar Rafiqah Amanda Lubis, Rafiqah Amanda Rambe, Aslamiyah Rambe, Daud Riski Baroroh Riski Baroroh Ritonga, Eka Nurwani Ritonga, Siti Nurzainab Rizky Ariaji, Rizky Rr. Eko Susetyarini Saddam Husein, Saddam Safran Efendi Pasaribu Sahlan Tuah Saleh Lubis, Rahmat Samsinar Samsinar Samsinar Samsinar Sarah Anggina, Nova Sargawi, Mansyur Sari, Eny Maya Sartika, Lidiya Silitonga, Yusnita Wahyuni Sipahutar, Andi Jaka Siregar, Indra Praja Siregar, Irmalia Fitri Siregar, Irmalia Fitri Siregar Siregar, Nurkholidah Siregar, Rabiatul Adawiyah Siti Aminah Sofyan Samosir, Benny Sormin, Masdelima Azizah Sukatno Sukatno, Sukatno Sukriah Siregar, Yani Sulidar Fitri Syah Pulungan, Darman Syahruddin Aritonang Syahruddin Aritonang Syaputra, Adi Tambunan, Muhammad Iqbal H. Tambunan, Muhammad Syarif Tobroni Tobroni Uli Anto hutagalung Wahyu Sipahutar, Luky Wilda Sari Manurung, Patima Yanty, Dini Puspita Youmita, Hotna Yuli Zuhkrina Yunita, Dinda Yusnita Wahyuni Silitonga Zai, Ayu Zuairiah, Patma Zuhkrina, Yuli