Polymere Ammoniumsalze aus N,N,N',N'-tetramethylalkylendiaminen und N,N'-alkylenbis(chloracetamid)en
Polymere Ammoniumsalze aus N,N,N',N'-tetramethylalkylendiaminen und N,N'-alkylenbis(chloracetamid)en
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N,N,N,N-四甲基亚烷基二胺和 N,N-亚烷基双（氯乙酰胺）聚合物铵盐
DOI：
10.1002/macp.1984.021850202
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
Helmut Gusbeth
中科院分区：
文献类型：
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作者：
H. Schindlbauer;Helmut Gusbeth
以N，N，N′，N′-四甲基亚烷基二胺2a、2b和N，N ′-亚烷基双（氯代乙酰胺）1a-g为原料，在DMF/H_2O中合成了长链聚合铵盐3a-g和4a。其中一些可以浇铸成透明的薄片。1a-g中的氯原子被相邻的羰基氨基活化。由N，N′-四亚甲基双（氯乙酰胺）（1d）和N，N，N′，N′-四甲基六亚甲基二胺（2b）得到的聚合物的特性粘度为61 ml/g，这是迄今为止已知的聚电解质的最高值。特性粘度随着单体中CH 2-基团数目的增加而降低。聚合铵盐3a-g和4a由DMF溶液得到片，其可溶于水并且在正常条件下稳定。由于其结构，最适合制备片材的聚合物的吸湿性比其他聚合物低。特性粘度由在0.4 M KCl中测量的比浓粘度计算，但也可通过Yuan等人的方法在水中测定，将换算比粘度作为1/100 ℃的函数作图。
Long chain polymeric ammonium salts 3a–g and 4a were prepared in DMF/H2O from N,N,N′,N′-tetramethylalkylenediamines 2a and 2b and N,N′-alkylenebis(chlorocetamide)s 1a–g. Some of them can be casted to clear transparent sheets. The chlorine atoms in 1a – g are activated by the adjacent carbonyl amino group. The polymer from N,N′-tetramethylenebis(chloroacetamide) (1d) and N,N,N′,N′-tetramethylhexamethylenediamine (2b) shows an intrinsic viscosity of 61 ml/g, the highest value known for polyelectrolytes so far. The intrinsic viscosity decreases with increasing numbers of CH2-groups in the monomers. The polymeric ammonium salts 3a – g and 4a give sheets from DMF solutions, which are soluble in water and stable under normal conditions. Polymers which are best suitable for the preparation of sheets show less hygroscopicity than the others, due to their structure. Intrinsic viscosities were calculated from the reduced specific viscosities measured in 0,4 M KCl but may be also determined in water by the method of Yuan et al., plotting the reduced specific viscosities as a function of 1/√c.