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...
| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
1995
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| Subjects: | |
| Online Access: | http://eprints.usm.my/31459/ http://eprints.usm.my/31459/1/ZAINAB_NGAINI.pdf |
| _version_ | 1848876576339394560 |
|---|---|
| author | Ngaini, Zainab |
| author_facet | Ngaini, Zainab |
| author_sort | Ngaini, Zainab |
| building | USM Institutional Repository |
| collection | Online Access |
| 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.
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| first_indexed | 2025-11-15T17:01:45Z |
| format | Thesis |
| id | usm-31459 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T17:01:45Z |
| publishDate | 1995 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-314592021-01-26T03:25:26Z 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. |
| spellingShingle | QD1-999 Chemistry Ngaini, Zainab Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol |
| title | 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_short | Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah
Asli Melalui Meta-Aminofenol
|
| title_sort | percantuman pen'i'aklorosiklotrifosfazena pada rangkaian getah
asli melalui meta-aminofenol |
| topic | QD1-999 Chemistry |
| url | http://eprints.usm.my/31459/ http://eprints.usm.my/31459/1/ZAINAB_NGAINI.pdf |