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STAR07

[交流] 【求助】三聚氰胺与对苯二甲醛聚合

三聚氰胺与对苯二甲醛聚合的条件?谢谢!
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dfq0730

木虫 (文坛精英)

顺天府府尹

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怎么不去查文献呢,可惜我们学校数据库不全,要不能帮你查几篇好的
...
2楼2009-06-23 20:25:38
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cc136520

至尊木虫 (著名写手)

超分子化学

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缩合不了,三聚氰胺的氨基类似于酰胺
3楼2009-06-23 21:55:37
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zhangfangzhi

木虫 (职业作家)

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貌似最近JACS有一篇
作介孔材料
4楼2009-06-24 08:34:05
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elbflorenz

木虫 (著名写手)

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跟风挺快的呵呵
照着JACS的工艺做不就行了嘛。
5楼2009-06-24 14:21:58
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zhangfangzhi

木虫 (职业作家)

J. Am. Chem. Soc., 2009, 131 (21), pp 7216–7217

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huxw1985(金币+2,VIP+0):金币奖励。 6-24 20:46
Catalyst-free Preparation of Melamine-Based Microporous Polymer Networks through Schiff Base Chemistry
J. Am. Chem. Soc., 2009, 131 (21), pp 7216–7217
Abstract

Recently, the synthesis of organic materials with high porosity has received considerable scientific interest, and various chemical approaches have been applied to the build-up of microporous polymer networks. In a novel catalyst-free process using Schiff base chemistry, melamine has been reacted with various di- and trivalent aldehydes to form a series of highly cross-linked microporous aminal networks with BET surface areas as high as 1377 m2/g and a NLDFT micropore volume of up to 0.41 cm3/g. It was shown that through the proper choice of the starting compounds the porosity of the final material can be fine-tuned. The materials contain up to 40 wt % of nitrogen and were also found to exhibit high thermal stability. Owing to the cheap and abundant monomers used in this study these networks are promising candidates for large-scale applications in gas storage, gas separation, catalysis, and sensing.
6楼2009-06-24 15:51:04
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zhangfangzhi

木虫 (职业作家)

楼主不给金币
说不过去
7楼2009-06-24 15:52:00
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STAR07

呵呵!实在是对不住上边的啊!金币太少了,多的话就多给点。多谢!J. Am. Chem. Soc., 2009, 131 (21), pp 7216–7217
就是看到这篇文献才有的idea,可是这篇文献提到的实验部分太少了,看似比较简单,一般的希夫碱化学的话温度不需要那么高的,胺醛缩合通常是比较容易的。
8楼2009-06-25 10:53:13
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STAR07

三聚氰胺与醛类的缩合主要是制备树脂,或者是阻燃剂,或者是三聚氰胺仅仅是作为一种添加剂,在脲醛树脂里比较多,但是我看后感觉没有什么收获。
9楼2009-06-25 10:55:41
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STAR07

请问三聚氰胺与醛的缩合为什么有些文献提到需要用惰气保护?
10楼2009-06-25 10:58:27
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