Epoxidation and hydroxylation of liquid natural rubber
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...
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2017
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| Online Access: | http://journalarticle.ukm.my/10720/ http://journalarticle.ukm.my/10720/1/17%20Nurhanis%20Adila.pdf |
| _version_ | 1848812484695162880 |
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| author | Nur Hanis Adila Azhar, Hamizah Md Rasid, Siti Fairus M. Yusoff, |
| author_facet | Nur Hanis Adila Azhar, Hamizah Md Rasid, Siti Fairus M. Yusoff, |
| author_sort | Nur Hanis Adila Azhar, |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | 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). |
| first_indexed | 2025-11-15T00:03:02Z |
| format | Article |
| id | oai:generic.eprints.org:10720 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:03:02Z |
| publishDate | 2017 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:107202017-10-07T15:01:56Z http://journalarticle.ukm.my/10720/ Epoxidation and hydroxylation of liquid natural rubber Nur Hanis Adila Azhar, Hamizah Md Rasid, Siti Fairus M. Yusoff, 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). Penerbit Universiti Kebangsaan Malaysia 2017-03 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/10720/1/17%20Nurhanis%20Adila.pdf 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 http://www.ukm.my/jsm/english_journals/vol46num3_2017/contentsVol46num3_2017.html |
| spellingShingle | Nur Hanis Adila Azhar, Hamizah Md Rasid, Siti Fairus M. Yusoff, Epoxidation and hydroxylation of liquid natural rubber |
| title | Epoxidation and hydroxylation of liquid natural rubber |
| title_full | Epoxidation and hydroxylation of liquid natural rubber |
| title_fullStr | Epoxidation and hydroxylation of liquid natural rubber |
| title_full_unstemmed | Epoxidation and hydroxylation of liquid natural rubber |
| title_short | Epoxidation and hydroxylation of liquid natural rubber |
| title_sort | epoxidation and hydroxylation of liquid natural rubber |
| url | http://journalarticle.ukm.my/10720/ http://journalarticle.ukm.my/10720/ http://journalarticle.ukm.my/10720/1/17%20Nurhanis%20Adila.pdf |