Epoxidation and hydroxylation of liquid natural rubber

Nur Hanis Adila Azhar, and Hamizah Md Rasid, and Siti Fairus M. Yusoff, (2017) Epoxidation and hydroxylation of liquid natural rubber. Sains Malaysiana, 46 (3). pp. 485-491. ISSN 0126-6039


Official URL: http://www.ukm.my/jsm/english_journals/vol46num3_2...


Liquid natural rubber (LNR) was functionalized into liquid epoxidized natural rubber (LENR) and hydroxylated LNR (LNR-OH) via oxidation using a Na2WO4/CH3COOH/H2O2 catalytic system. Microstructures of LNR and functionalized LNRs were characterized using Fourier Transform Infrared (FTIR) and Nuclear Magnetic Resonance (NMR) spectroscopies. The effect of CH3COOH, H2O2, Na2WO4, reaction time and temperature. reaction time and temperature on epoxy content were investigated. LNR-OH was obtained when oxidation reaction was conducted at a longer reaction time, higher temperature or excess amount of catalyst. Thermogravimetric analysis (TGA) reported the thermal behavior of functionalized LNRs. Molecular weight and polydispersity index (PDI) were determined using gel permeation chromatography (GPC).

Item Type:Article
Keywords:Diols; Epoxidation; Hydroxylated; Liquid natural rubber; Oxidation
Journal:Sains Malaysiana
ID Code:10720
Deposited By: ms aida -
Deposited On:02 Oct 2017 04:40
Last Modified:07 Oct 2017 15:01

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