摘要
应用共振光散射光谱(RLS)、荧光光谱,并结合红外光谱,探讨了羧甲基纤维素(CMC)与聚乳酸(PLA)在溶液中的相互作用机理。结果表明CMC和PLA可以通过相互作用的氢键而形成稳定的分子间复合物(IPCs)。基于RLS技术详细讨论了CMC与PLA的质量比对其相互作用的影响。特别地,通过分析体系RLS信号强度的变化趋势,直观考察了CMC与PLC在溶液中相互作用过程。同时,基于RLS数据,利用自建模型计算了CMC与PLA之间的平均结合位点数。
The interaction mechanism between carboxymethyl cellulose（CMC） and polylactic acid（PLA） in solution was studied by FTIR,resonance light scattering（RLS）,and fluorescence spectroscopy.The results indicated that the CMC and PLA formed a steady homogeneous intermolecular complex（IPCs） due to the interaction of hydrogen bonding.The effect of mass ratio on the forming of the complex was investigated based on RLS technology.The interaction process of CMC and PLA in solution was directly observed by the analysis of changing trends of RLS signal.The average number of bind sites of the complex was also investigated by self-built mathematical models based on RLS values.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第4期67-70,76,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学基金资助项目(50673104)
关键词
羧甲基纤维素
聚乳酸
相互作用
光谱
carboxymethyl cellulose
polylactic acid
interaction
spectroscopy
