CAJ | 학술논문

通过溶液蒸发铸膜法制备壳聚糖膜及离子液体／壳聚糖复合膜．利用傅里叶红外光谱仪、原子力扫描探针显微镜和动态热机械分析等测试手段分析了样品的结构、形貌和动态力学性能．结果表明，壳聚糖中加入离子液体形成复合膜，离子液体加入壳聚糖不仅是简单的物理混合，两者之间有氢键等作用力存在；离子液体对壳聚糖膜结晶形貌有较大影响，纯壳聚糖膜结晶为细长针状，且分散均匀，样品表面比较平整；加入离子液体后，呈球形颗粒状，且随着其加入量的增多，颗粒尺寸呈先增大后减小的趋势．当加入量为20％时，颗粒尺寸最大，表面粗糙度达267．74 nm；复合膜的储能模量达到最大，约是纯壳聚糖膜储能模量的1．5倍；但离子液体的加入并未明显改变其玻璃化转变温度．
통과용액증발주막법제비각취당막급리자액체／각취당복합막．이용부리협홍외광보의、원자력소묘탐침현미경화동태열궤계분석등측시수단분석료양품적결구、형모화동태역학성능．결과표명，각취당중가입리자액체형성복합막，리자액체가입각취당불부시간단적물리혼합，량자지간유경건등작용력존재；리자액체대각취당막결정형모유교대영향，순각취당막결정위세장침상，차분산균균，양품표면비교평정；가입리자액체후，정구형과립상，차수착기가입량적증다，과립척촌정선증대후감소적추세．당가입량위20％시，과립척촌최대，표면조조도체267．74 nm；복합막적저능모량체도최대，약시순각취당막저능모량적1．5배；단리자액체적가입병미명현개변기파리화전변온도．
The ionic liquid/chitosan composite membrane was prepared by solution casting.Structure,mor-phology and mechanical properties of the composites were analyzed by FT-IR,AFM and DMA.The results showed that there existed significant physical interactions such as hydrogen bond between the ionic liquid and chitosan.There was a great impact on the crystal morphology of the chitosan with the addition of ionic liquids.The pure chitosan looked like slender needle with good distribution and its surface was flat.Where-as the spherulites particles were observed and the particle size increased firstly,then decreased.When adding content was 20%,the particle size was the largest,and corresponding surface roughness was 267 .74 nm;the storage modulus of composite membrane achieved maximum,about 1 .5 times than that of the pure chitosan film.But with the addition of ionic liquids,there was no obvious change of chitosan mem-brane glass transition temperature.