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Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol

Pengubahsuaian getah asli terepoksida dan bahan terbitannya dengan heksaklorosiklotrifosfazena telah dikaji. Polimerpolimer terbitan yang mengandungi unit-unit pentaklorosiklotrifosfazena yang tereantum pada rangkaian getah asli melalui meta-Aminofenol telah disediakan. Penyediaan polimer-polime...

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Main Author: Ngaini, Zainab
Format: Thesis
Language:English
Published: 1995
Subjects:
QD1-999 Chemistry
Online Access:http://eprints.usm.my/31459/1/ZAINAB_NGAINI.pdf
http://eprints.usm.my/31459/
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spelling my.usm.eprints.31459 http://eprints.usm.my/31459/ Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol Ngaini, Zainab QD1-999 Chemistry Pengubahsuaian getah asli terepoksida dan bahan terbitannya dengan heksaklorosiklotrifosfazena telah dikaji. Polimerpolimer terbitan yang mengandungi unit-unit pentaklorosiklotrifosfazena yang tereantum pada rangkaian getah asli melalui meta-Aminofenol telah disediakan. Penyediaan polimer-polimer terbitan tersebut, PIla, PlIb, PIle dan PIld, melibatkan' tindak balas dua-peringkat. Produk, PI, yang didapati daripada tindak bal as antara getah as 1 i terepoksida 50 per~tus mol (ENR-50) dan meta-Aminofenol telah ditindakbalaskan terus dengan heksakl orosikl otri fosfazena dengan nisbah mol yang berlainan. AIC1 3.6H20 telah digunakan untuk memprotonkan gelang epoksida ENR-50 yang menggalakkan serangan metaAminofenol pada rantai getah asli. PI yang diperolehi telah menghasilkan nilai Tg, 17.16 °c, yang lebih tinggi daripada nilai Tg ENR-50, -22.80 °c. The modification of e'poxidized natural rubber and its derivative with hexachlorocyclotriphosphazene has been studied. Polymer derivatives comprised of pentachloiocyclotriphosphazene as pendant units to the natural rubber net~ork have been prepared. The preparation of these polymer derivatives, Plla, Pllb, Pllc and Plld, involved a two-step reaction. The product, PI, that formed from the reaction of 50 mole percent epoxidized natural rubber (,E NR-50) and meta- Aminophenol was directly reacted with different mole ratios of hexachl orocycl otriphophazene. Al Cl3 .6H20 was used to protonate the epoxy group of ENR-50 that promoted the attack by meta~ Aminophenol to the polymer backbone. PI was found to have a higher Tg value, 17.16 °c, than that of ENR-50, -22.80 °c. 1995-06 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/31459/1/ZAINAB_NGAINI.pdf Ngaini, Zainab (1995) Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic QD1-999 Chemistry
spellingShingle QD1-999 Chemistry
Ngaini, Zainab
Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol
description Pengubahsuaian getah asli terepoksida dan bahan terbitannya dengan heksaklorosiklotrifosfazena telah dikaji. Polimerpolimer terbitan yang mengandungi unit-unit pentaklorosiklotrifosfazena yang tereantum pada rangkaian getah asli melalui meta-Aminofenol telah disediakan. Penyediaan polimer-polimer terbitan tersebut, PIla, PlIb, PIle dan PIld, melibatkan' tindak balas dua-peringkat. Produk, PI, yang didapati daripada tindak bal as antara getah as 1 i terepoksida 50 per~tus mol (ENR-50) dan meta-Aminofenol telah ditindakbalaskan terus dengan heksakl orosikl otri fosfazena dengan nisbah mol yang berlainan. AIC1 3.6H20 telah digunakan untuk memprotonkan gelang epoksida ENR-50 yang menggalakkan serangan metaAminofenol pada rantai getah asli. PI yang diperolehi telah menghasilkan nilai Tg, 17.16 °c, yang lebih tinggi daripada nilai Tg ENR-50, -22.80 °c. The modification of e'poxidized natural rubber and its derivative with hexachlorocyclotriphosphazene has been studied. Polymer derivatives comprised of pentachloiocyclotriphosphazene as pendant units to the natural rubber net~ork have been prepared. The preparation of these polymer derivatives, Plla, Pllb, Pllc and Plld, involved a two-step reaction. The product, PI, that formed from the reaction of 50 mole percent epoxidized natural rubber (,E NR-50) and meta- Aminophenol was directly reacted with different mole ratios of hexachl orocycl otriphophazene. Al Cl3 .6H20 was used to protonate the epoxy group of ENR-50 that promoted the attack by meta~ Aminophenol to the polymer backbone. PI was found to have a higher Tg value, 17.16 °c, than that of ENR-50, -22.80 °c.
format Thesis
author Ngaini, Zainab
author_facet Ngaini, Zainab
author_sort Ngaini, Zainab
title Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol
title_short Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol
title_full Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol
title_fullStr Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol
title_full_unstemmed Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol
title_sort percantuman pen'i'aklorosiklotrifosfazena pada rangkaian getah asli melalui meta-aminofenol
publishDate 1995
url http://eprints.usm.my/31459/1/ZAINAB_NGAINI.pdf
http://eprints.usm.my/31459/
_version_ 1690371940821237760
score 13.211869

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