1) pentaerythritol
[,pentəi'riθritɔl]
季戊四醇
1.
Synthesis of pentaerythritol diacetals and diketals catalyzed by methanesulfonic acid;
甲基磺酸催化合成季戊四醇双缩醛(酮)
2.
Synthesis of star-shaped poly(p-dioxanone) by pentaerythritol;
以季戊四醇为引发剂的星形聚对二氧环己酮的合成
3.
Effect of 4A Zeolite on Property of Flame Retardant PP by Melamine Phosphate/Pentaerythritol;
4A分子筛对三聚氰胺磷酸盐/季戊四醇阻燃PP性能的影响
2) pentaerythrite
季戊四醇
1.
The factors such as pH value,pressure and time in pressurized hydrolysis of pentaerythrite solution and pentaerythrite mother liquor are studied.
本文研究了回收季戊四醇溶液或季戊四醇母液加压水解时pH值、压力和时间等因素对缩醛水解的影响。
2.
Bis(bromomethyl) 1,3 propanediol as a good reaction type fire retardant was synthesized by some processes such as replacement reaction, decompression separation, purification and drying from pentaerythrite and 40% hydrobromic acid solution in catalysis of glacial acetic acid, with a yield of 80.
以季戊四醇和４０％氢溴酸溶液为原料，冰醋酸为催化剂，经取代反应、减压分离、纯化和干燥等步骤合成了具有优良性能的反应型阻燃剂２，２二（溴甲基）１，３丙二醇，以季戊四醇计，产品收率为８０。
3) Dipentaerythritol
[,daipənti:ri'θritɔl]
双季戊四醇
1.
Synthesis and Application of Dipentaerythritol Ester;
双季戊四醇辛醇酯的合成及应用
2.
Synthesis of lubricating oil dipentaerythritol hexa-esters under microwave radiation;
微波辐射下润滑油类双季戊四醇六酯的合成
3.
Synthesis of dipentaerythritol hexaacrylate;
双季戊四醇六丙烯酸酯的合成
4) mono-pentaerythritol
单季戊四醇
1.
A process for the preparation of mono-pentaerythritol by condensation of formaldehyde and acetaldehyde with sodium hydrate as base was studied,and effect of reaction temperature and time,concentration of formaldehyde and acetaldehyde,and molar ratio of reactants was investigated.
研究了以甲醛、乙醛、氢氧化钠为原料经缩合反应合成单季戊四醇的方法。
2.
As a result, contents of mono-pentaerythritol, di-pentaerythritol and ash are significantly decreased in the finished tripentaerythritol, where mono-pentaerythritol content changes form 7% to 3%, di-pentaerythritol content changes from 18.
从除去无机杂质和有机杂质两方面研究了得到高品位叁季戊四醇的方法 ,使叁季戊四醇产品中的单季戊四醇、双季戊四醇及灰份含量均得到显著的下降 ,其中单季从 7%降至 3%以下 ,双季从18。
5) pentaerythritol
[,pentəi'riθritɔl]
单季戊四醇
1.
The effects of some factors to the yield of mono-pentaerythritol were investigated by orthogonal experiments.
以甲醛、乙醛、烧碱为原料合成季戊四醇,通过正交试验,考察了各种工艺条件对合成单季戊四醇收率的影响。
6) pentaerythritol
[,pentəi'riθritɔl]
季戊四醇酯
1.
Synthesis of pentaerythritol ester catalyzed by SO_4~(2-)/ZrO_2-Al_2O_3;
SO_4~(2-)/ZrO_2-Al_2O_3催化合成脂肪酸季戊四醇酯的研究
2.
The friction behavior,which the pentaerythritol was used for the base oil and the T321 for the additives,was investigated with the four ball test machine.
以季戊四醇酯为基础油,在四球摩擦磨损试验机上研究了硫烯(T321)添加剂的摩擦学特性。
补充资料：季戊四醇
| 季戊四醇 pentaerythritol 一种多元醇，分子式 C（CH2OH ）4。又称四羟甲基甲烷或二羟甲基-1，3-丙二醇。  白色或淡黄色结晶粉末。熔点 269℃。易溶于热水，在冷水中溶解度较小，微溶于乙醇。季戊四醇与氢溴酸或氢碘酸反应，生成二卤代醇，然后再生成四卤代烃，后者与乙醇钠反应，则生成季戊四醇四乙基醚；与硝酸反应生成四硝酸季戊四醇酯，此化合物为无色晶体，熔点140～141℃，对碰撞极敏感，是强爆炸力炸药，也是长效抗心绞痛药；与氯化亚砜反应，生成亚硫酸季戊四醇酯；在盐酸或氯化锌存在下与醛或酮反应生成缩醛或缩酮，当醛量不足时只生成单缩醛。季戊四醇是用甲醛和乙醛在碱水溶液中缩合、还原制备。反应时先生成三羟甲基乙醛，然后再经甲醛还原即得产物 。以上反应有较多副反应，应严格控制原料配比和反应温度 。季戊四醇是制作油漆、涂料、合成树脂和炸药的重要原料 。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条