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中文摘要：
以可溶性淀粉为原料，N，N′-亚甲基双丙烯酰胺为交联剂，采用反相悬浮聚合制备了交联淀粉微球（CSM），研究了CSM对Cu^2＋的吸附行为，利用红外光谱仪、X射线衍射仪和综合热分析仪对吸附产物进行结构表征，研究了吸附机理。结果表明，CSM对Cu^2＋吸附行为符合Freundlich吸附等温方程，CSM通过物理吸附、配位吸附方式吸附Cu^2＋，吸附Cu^2＋使CSM结晶结构被进一步破坏，结晶度下降，CSM总体热稳定性下降，Cu^2＋对CSM主链的分解具有一定的催化作用。
英文摘要：
The crosslinked starch microspheres （CSM） were synthesized from soluble starch by inverse suspension polymerization with N, N′-methylenebisacrylamide as crosslinker. Adsorption characteristic of CSM for Cu^2＋ was investigated. The product after adsorption was characterized by Fourier transform infrared spectroscopy （FT-IR）, X-ray diffraction （XRD） and synthesis thermoanalysis instrument, mechanism of adsorption was also discussed. The results show that the adsorption characteristic of CSM for Cu^2＋ is adapted to Freundlich adsorption isotherm equation. The CSM absorb Cu^2＋ by means of physical adsorption and coordination adsorption. The copper ions may coordinate with amide linkage and hydroxyl of CSM. Crystal structure of CSM has been destroyed after adsorbing Cu^2＋. Crystallinity and generally thermal stability of CSM decrease. The copper ions have evident catalyzing function to the decomposition of CSM main chains.
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