Epoxidation and hydroxylation of liquid natural rubber

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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Main Authors: Nur Hanis Adila Azhar, Hamizah Md Rasid, Siti Fairus M. Yusoff
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2017
Online Access:http://journalarticle.ukm.my/10720/
http://journalarticle.ukm.my/10720/
http://journalarticle.ukm.my/10720/1/17%20Nurhanis%20Adila.pdf
id ukm-10720
recordtype eprints
spelling ukm-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
repository_type Digital Repository
institution_category Local University
institution Universiti Kebangasaan Malaysia
building UKM Institutional Repository
collection Online Access
language English
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).
format Article
author Nur Hanis Adila Azhar,
Hamizah Md Rasid,
Siti Fairus M. Yusoff,
spellingShingle Nur Hanis Adila Azhar,
Hamizah Md Rasid,
Siti Fairus M. Yusoff,
Epoxidation and hydroxylation of liquid natural rubber
author_facet Nur Hanis Adila Azhar,
Hamizah Md Rasid,
Siti Fairus M. Yusoff,
author_sort Nur Hanis Adila Azhar,
title Epoxidation and hydroxylation of liquid natural rubber
title_short 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_sort epoxidation and hydroxylation of liquid natural rubber
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2017
url http://journalarticle.ukm.my/10720/
http://journalarticle.ukm.my/10720/
http://journalarticle.ukm.my/10720/1/17%20Nurhanis%20Adila.pdf
first_indexed 2023-09-18T19:58:17Z
last_indexed 2023-09-18T19:58:17Z
_version_ 1777406676583841792

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