无规聚甲基丙烯酸甲酯在聚乙二醇齐聚物溶液中的自组织及凝胶行为

The self\|aggregation and gelation behaviors of atactic poly(methyl methacrylates)(aPMMA) in poly(ethylene glycol)(PEG) oligomers were studied by using FTIR spectroscopic measurements. The in\|situ variable temperature IR studies in aPMMA/PEG gel suggested that some aPMMA segments were in the aggregated state in solution, which became a node in the solution. With decreasing temperature, the fraction of aggregated aPMMA in solution increases, resulting in the gelation of aPMMA.

加强思想政治工作 正确处理五个关系

在改革开放的新形势下,如何加强物资系统职工队伍的思想政治工作,是我们面临的新课题。近年来,我们德州地区物资局根据本系统人多、分散、流动性大的特点,坚持正确处理五个关系,从而使思想政治工作收到了良好的效果。一、正确处理“两个文明”建设的关系,增强“两手抓”的自觉性我们首先从马克思主义理论的高度,认识两个文明建设一起抓的科学性,从物资企业的社会主义性质。