| 7 | 1/1 | 返回列表 |
| 查看: 1638 | 回復(fù): 6 | ||
| 本帖產(chǎn)生 1 個 翻譯EPI ,點(diǎn)擊這里進(jìn)行查看 | ||
[求助]
師兄快要答辯了,讓我這小師弟去幫忙翻譯題目和摘要~在此求助各位大神!
|
||
|
非對稱環(huán)三磷腈基苯并惡嗪樹脂單體的合成 摘 要 六氯環(huán)三磷腈化合物是一類耐熱阻燃性能優(yōu)良的雜環(huán)化合物,每個磷上面連接兩個氯原子,其含磷量相對較高,這也使得它相應(yīng)的衍生物具有優(yōu)異的阻燃性和熱穩(wěn)定性。而苯并噁嗪樹脂是在傳統(tǒng)的樹脂基礎(chǔ)上發(fā)展起來的一種新型類酚醛樹脂。它不但繼承了傳統(tǒng)樹脂的耐熱、阻燃等優(yōu)點(diǎn),自身還具有傳統(tǒng)酚醛樹脂所不具有的性能,如:體積零收縮、固化不需催化劑、便于加工成型及靈活的分子結(jié)構(gòu)設(shè)計(jì)等,具有良好應(yīng)用前景。本文通過向磷腈環(huán)上引入部分噁嗪結(jié)構(gòu),意欲提高原有六氯環(huán)三磷腈的阻燃和耐熱性。 本實(shí)驗(yàn)先以六氯環(huán)三磷腈和2,2’-聯(lián)苯酚為原料合成T1,后用對氨基苯酚和水楊醛合成含有C=N結(jié)構(gòu)的中間體,隨后利用NaBH4將C=N雙鍵還原,然后在1,4-二氧六環(huán)溶液中加入多聚甲醛回流,使其生成含有酚羥基的苯并噁嗪單體C3。最后在1,4-二氧六環(huán)體系中將T1與C3發(fā)生親核取代反應(yīng)。分別利用通過FI-IR、1H NMR和31P NMR對所合成化合物結(jié)構(gòu)進(jìn)行了表征。 關(guān)鍵詞:六氯環(huán)三磷腈 苯并噁嗪 合成 耐熱性 阻燃性 |

鐵桿木蟲 (職業(yè)作家)

|
本帖內(nèi)容被屏蔽 |
至尊木蟲 (著名寫手)

|
Hexachloro cyclotriphosphazene compounds are excellent heat retardant properties of a class of heterocyclic compounds, Connecting each two phosphorus at a chlorine atom, a phosphorus content is relatively high, which also makes its corresponding derivative having excellent flame retardancy and thermal stability. 這是是翻譯的第一句話。 后面的句子感覺整部明白~ |

至尊木蟲 (著名寫手)
|
Synthesis of Asymmetric Cyclotriphosphazene-Benzoxazine Monomer Abstract 六氯環(huán)三磷腈化合物是一類耐熱阻燃性能優(yōu)良的雜環(huán)化合物,每個磷上面連接兩個氯原子,其含磷量相對較高,這也使得它相應(yīng)的衍生物具有優(yōu)異的阻燃性和熱穩(wěn)定性。而苯并噁嗪樹脂是在傳統(tǒng)的樹脂基礎(chǔ)上發(fā)展起來的一種新型類酚醛樹脂。它不但繼承了傳統(tǒng)樹脂的耐熱、阻燃等優(yōu)點(diǎn),自身還具有傳統(tǒng)酚醛樹脂所不具有的性能,如:體積零收縮、固化不需催化劑、便于加工成型及靈活的分子結(jié)構(gòu)設(shè)計(jì)等,具有良好應(yīng)用前景。本文通過向磷腈環(huán)上引入部分噁嗪結(jié)構(gòu),意欲提高原有六氯環(huán)三磷腈的阻燃和耐熱性。Hexachloro cyclotriphosphazene (HCC) are heterocyclic compounds with excellent heat-resistant and flame-retardant properties. In HCC each phosphorus is connected with two chlorine; its phosphorus content is relatively high, which provides its derivatives with excellent flame retardant properties and thermal stability. Benzoxazine resin is a new phenol formaldehyde resin (phenolic resin) evolved from the traditional resin. It not only has the heat-resistant, fire-retardant and other features, it also has its unique properties that traditional phenolic resins do not have, such as: no shrinkage, can be cured without a catalyst, ease to be processed to desired shapes and the flexibility in the design of molecular structures. It therefore has an excellent prospects in applications. In this paper, we introduced a portion of benzoxazine structure to the phosphazene ring in order to improve the flame retardant and heat resistance properties of the original HCC. 本實(shí)驗(yàn)先以六氯環(huán)三磷腈和2,2’-聯(lián)苯酚為原料合成T1,后用對氨基苯酚和水楊醛合成含有C=N結(jié)構(gòu)的中間體,隨后利用NaBH4將C=N雙鍵還原,然后在1,4-二氧六環(huán)溶液中加入多聚甲醛回流,使其生成含有酚羥基的苯并噁嗪單體C3。最后在1,4-二氧六環(huán)體系中將T1與C3發(fā)生親核取代反應(yīng)。分別利用通過FI-IR、1H NMR和31P NMR對所合成化合物結(jié)構(gòu)進(jìn)行了表征。 Staring from HCC and 2,2'-Biphenol as the raw materials, we first synthesized the intermediate T1, then, from p-aminophenol and salicylaldehyde, we initially synthesized a C=N containing Schiff’s base intermediate, followed reduction using NaBH4 to reduced the C=N double bond, then treated with containing in 1,4-dioxane under reflux to generate phenolic hydroxyl-containing benzoxazine monomer C3. Finally, the substitution reaction of T1 and C3 were reacted in1,4-dioxane . The structures of the synthesized compounds were characterized by FI-IR, NMR 1H and NMR 31P, respectively.. Keywords: hexachloro cyclotriphosphazene, benzoxazine, synthesis, heat resistant, flame retardant |

| 7 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 一志愿211 初試270分 求調(diào)劑 +8 | 谷雨上岸 2026-03-23 | 9/450 |
|
|---|---|---|---|---|
|
[考研] 學(xué)碩274求調(diào)劑 +9 | Li李魚 2026-03-26 | 9/450 |
|
|
[考研] 332求調(diào)劑 +4 | @MZB382400 2026-03-28 | 4/200 |
|
|
[考研] 071000生物學(xué)求調(diào)劑,初試成績343 +7 | 小小甜面團(tuán) 2026-03-25 | 7/350 |
|
|
[考研] 275求調(diào)劑 +10 | Micky11223 2026-03-25 | 14/700 |
|
|
[考研] 320分,材料與化工專業(yè),求調(diào)劑 +9 | 一定上岸aaa 2026-03-27 | 13/650 |
|
|
[考研] 085600 286分 材料求調(diào)劑 +7 | 麻辣魷魚 2026-03-27 | 8/400 |
|
|
[考研] 340求調(diào)劑 +5 | jhx777 2026-03-27 | 5/250 |
|
|
[考研] 0703化學(xué)求調(diào)劑,各位老師看看我!。 +5 | 祁祺祺 2026-03-25 | 5/250 |
|
|
[考研] 285求調(diào)劑 +4 | AZMK 2026-03-27 | 7/350 |
|
|
[考研]
|
鐘llll 2026-03-26 | 4/200 |
|
|
[考研] 349求調(diào)劑 +4 | 李木子啊哈哈 2026-03-25 | 4/200 |
|
|
[考研] 081200-11408-276學(xué)碩求調(diào)劑 +3 | 崔wj 2026-03-26 | 3/150 |
|
|
[考研] 環(huán)境專碩324分求調(diào)劑推薦 +5 | 軒小寧—— 2026-03-26 | 5/250 |
|
|
[考研] 296求調(diào)劑 +4 | 汪!?! 2026-03-25 | 7/350 |
|
|
[考研] 0854電子信息求調(diào)劑 +7 | α____ 2026-03-22 | 9/450 |
|
|
[考研] 289材料與化工(085600)B區(qū)求調(diào)劑 +4 | 這么名字咋樣 2026-03-22 | 5/250 |
|
|
[考博] 26申博自薦 +3 | whh869393 2026-03-24 | 3/150 |
|
|
[考研] 336化工調(diào)劑 +4 | 王大坦1 2026-03-23 | 5/250 |
|
|
[考研] 求老師收我 +3 | zzh16938784 2026-03-23 | 3/150 |
|