摘要
用粘土在水中与＋ＮＨ３（ＣＨ２）５ＣＯＯＨ发生离子交换反应，有机阳离子嵌入到粘土的晶层之间，经处理的粘土与熔融的己内酰胺混合后，己内酰胺与粘土层间的有机阳离子具有一定的亲和性而嵌入粘土晶层之间，但只能以单分子层排列于晶层之间，层间的己内酰胺于２６０℃的条件下在有机阳离子的作用下发生聚合反应生成尼龙６，形成了一种嵌入化合物，在聚合过程中粘土晶层结构发生膨胀，局部区域粘土晶层结构发生分离，我们认为己内酰胺在粘土晶层间发生聚合放出的能量是粘土晶层结构发生膨胀的驱动力。
The clay was exchanged with +NH_3(CH_2)_5COOH in water solution, when the treated clay was mixed with the melted caprolactam, caprolactam could intercalate into clay interlayer and could polymerize in the clay interlayer under the action of +NH_3(CH_2)_5COOH at 260 ℃. The intercalated compound was characterized by IR, XRD, TG and TEM etc. The driving force for the swelling of clay is considerated to be a combination of polymerization energy of caprolactam and the attractive forces between the caprolactam and interlayer cations.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1998年第3期26-29,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金
