Simatupang, Citra Hazanah (2017) PENURUNAN BERAT MOLEKUL LNR (Liquid Natural Rubber) DENGAN METODE PENCANGKOKAN DAN PEMUTUSAN RANTAI YANG DIGUNAKAN SEBAGAI BINDER CAT EMULSI. Undergraduate thesis, UNIMED.
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Abstract
Telah dilakukan penelitian tentang pembuatan LNR-g-MA dengan menggunakan metode pencangkokan yang menggunakan Maleat Anhidrat sebagai monomer dan BPO sebagai inisiator. Pada proses pencangkokan dilakukan variasi pada penambahan monomer MA yaitu (5, 10, dan 15) phr. Sebelum proses pencangkokan, dilakukan terlebih dahulu preparasi lateks dengan menambahkan surfaktan CTAB untuk menstabilkan dan menghomogenkan antara lateks dan pelarut. Serta hasil dari preparasi lateks kemudian dilakukan metode pemutusan rantai dengan penambahan fenil hidrazin sehingga dihasilkan LNR dengan berat molekul rendah. Pada penelitian ini dilakukan uji karakterisasi dengan menggunakan instrumen FTIR untuk menunjukkan gugus-gugus fungsi yang terdapat pada LNR dan LNR-g-MA serta uji berat molekul dengan menggunakan alat Viskometer Ostwald untuk mengetahui penurunan berat molekul yang terjadi. Dari penelitian yang telah dilakukan, penurunan berat molekul pada LNR (Liquid Natural Rubber) menghasilkan berat molekul rata-rata ( 2,47 x 101, dan pada pencangkokan LNR dengan MA didapatkan hasil yang maksimal untuk penurunan berat molekul di variasi 10 phr yaitu 8,12 x 102.
Item Type: | Thesis (Undergraduate) | ||||||
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Call Number: | SK-2017 KIM 020 | ||||||
Keywords: | Liquid Natural Rubber, surfaktan CTAB, fenil hidrazin, pencangkokan, MA, uji FTIR, uji berat molekul | ||||||
Subjects: | Q Science > QD Chemistry > QD146 Inorganic chemistry Q Science > QD Chemistry > QD415 Biochemistry |
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Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia | ||||||
Depositing User: | Mr Maknun | ||||||
Date Deposited: | 28 Apr 2017 03:58 | ||||||
URI: | http://digilib.unimed.ac.id/id/eprint/24376 |
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