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...
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
1995
|
| Subjects: | |
| Online Access: | http://eprints.usm.my/31459/1/ZAINAB_NGAINI.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
my-usm-ep.31459 |
|---|---|
| record_format |
uketd_dc |
| spelling |
my-usm-ep.314592021-01-26T03:25:26Z Percantuman Pen'i'aklorosiklotrifosfazena Pada Rangkaian Getah Asli Melalui Meta-Aminofenol 1995-06 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 http://eprints.usm.my/31459/ http://eprints.usm.my/31459/1/ZAINAB_NGAINI.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Kimia |
| institution |
Universiti Sains Malaysia |
| collection |
USM Institutional Repository |
| 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 |
| qualification_level |
Master's degree |
| 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 |
| granting_institution |
Universiti Sains Malaysia |
| granting_department |
Pusat Pengajian Sains Kimia |
| publishDate |
1995 |
| url |
http://eprints.usm.my/31459/1/ZAINAB_NGAINI.pdf |
| _version_ |
1747820429812170752 |