Pengubahsuaian getah asli terepoksida dan bahan terbitannyauddengan heksaklorosiklotrifosfazena telah dikaji. Polimerpolimerudterbitan yang mengandungi unit-unit pentaklorosiklotrifosfazenaudyang tereantum pada rangkaian getah asli melaluiudmeta-Aminofenol telah disediakan. Penyediaan polimer-polimerudterbitan tersebut, PIla, PlIb, PIle dan PIld, melibatkan'udtindak balas dua-peringkat. Produk, PI, yang didapati daripadaudtindak bal as antara getah as 1 i terepoksida 50 per~tus molud(ENR-50) dan meta-Aminofenol telah ditindakbalaskan terusuddengan heksakl orosikl otri fosfazena dengan nisbah mol yangudberlainan. AIC1 3.6H20 telah digunakan untuk memprotonkanudgelang epoksida ENR-50 yang menggalakkan serangan metaAminofenoludpada rantai getah asli. PI yang diperolehi telahudmenghasilkan nilai Tg, 17.16 °c, yang lebih tinggi daripadaudnilai Tg ENR-50, -22.80 °c. udThe modification of e'poxidized natural rubber and itsudderivative with hexachlorocyclotriphosphazene has beenudstudied. Polymer derivatives comprised of pentachloiocyclotriphosphazeneudas pendant units to the natural rubber net~orkudhave been prepared. The preparation of these polymerudderivatives, Plla, Pllb, Pllc and Plld, involved a two-stepudreaction. The product, PI, that formed from the reaction ofud50 mole percent epoxidized natural rubber (,E NR-50) and meta-udAminophenol was directly reacted with different mole ratios ofudhexachl orocycl otriphophazene. Al Cl3 .6H20 was used to protonateudthe epoxy group of ENR-50 that promoted the attack by meta~udAminophenol to the polymer backbone. PI was found to have a higher Tg value, 17.16 °c, than that of ENR-50, -22.80 °c.ud
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