低聚醚磺酸锂／梳形聚醚复合物的单离子导电性

低聚醚磺酸锂／梳形聚醚复合物的单离子导电性郑云贵，万国祥（中国科学院成都有机化学研究所成都６１００４１）关键词低聚醚磺酸锂，单离子导体，阳离子迁移数聚合物阳离子导体一般采用单体盐与能促进离子迁移的单体通过共聚或将其均聚物共混的方式制备’‘－‘’．由于...     

低聚醚磺酸锂／梳形聚醚复合物的单离子导电性

A complex ionic conductor was prepared by solution complexation of lithium methoxy oligo (oxyethylene) sulfonate (SOL₈, where & is the repeating unit of oxyethylene) with comblike copolyether poly [methoxy oligo (oxyethylene)methacrylate-co-acrylamide] [P(MEO₁₆-AM)]. The composition dependences of glass transition temperature,crystallinity as well as conducti-vity of the complex were investigated. DC polarization showed that the complex shows a stable polarization characteristic. Polarization reversing method confirmed that the complex has a cati-onic transference number of 0.99.     

乳液聚合法制备亚微米级分子印迹聚合物微球

以西咪替丁为印迹分子，2-丙烯酰胺-2-甲基丙磺酸(AMPS)为功能单体，三羟甲基丙烷三甲基丙烯酸甲酯(TRIM)为交联剂，采用乳液聚合法制备了亚微米级分子印迹聚合物微球．利用扫描电镜对此聚合物微球的形貌进行了观察，探讨了影响乳液稳定性、粒径大小与分布的主要因素，重点对聚合工艺和配方进行了优化，并将所得的聚合物用作吸附剂研究了其分子识别与选择性能．研究表明，乳液聚合法能够制得单分散性较好的、平均粒径在0．169μm～0．407μm的分子印迹聚合物微球，且该微球对其印迹分子呈现出较好的特异识别与选择性能，当以苯丙氨酸为竞争分子时，分离因子可达1．70．     

螯合树脂／聚砜复合滤膜的制备研究

本文以聚砜（PS）／螯合树脂（D418）作为膜材料,用相转化法制备了共混螯合平板滤器。考察了聚合物共混比例、凝固浴的组成、膜在空气中的蒸发时间,以及制膜液温度等工艺参数的变化对膜结构性能的影响。     

Quantum nonthermal effect of the Vaidya-Bonner-de Sitter black hole

Using the Hamilton-Jacobi equation of a scalar particle in the curve space-time and a correct- dimension new tortoise coordinate transformation, the quantum nonthermal radiation of the Vaidya-Bonner-de Sitter black hole is investigated. The energy condition for the occurrence of the Starobinsky-Unruh process is obtained. The event horizon surface gravity and the Hawking temperature on the event horizon are also given.     

珠算“两则”乘法和“正负”除法——记珠算家李新在黑龙江省珠算协会职工培训班上讲座要点

为保护传承简捷先进的珠算算法,2013年9月12日至15日,在黑龙江省珠算协会职工培训班上。我们聆听了90岁高龄的珠算老人——中国珠算协会开创者、珠算专家李新讲授珠算“两则”乘法和“正负”除法,是学习也是一种享受。参加学习的省珠协部分职工和老中青三结合的科研、教学与管理人员,一致认为这次的学习不同以往,感触颇深。     

Photo-Induced Carriers in Near-Stoichiometric LiNbO3：Fe Crystal

We detect the photo-induced carriers in near-stoichiometric iron doped LiNbO3 crystal by the holographic technique. The results show that the dominant carriers are electrons in the sample with Li/Nb ratio of 0.9988. By analysis of the OH^- absorption spectra of the crystal, we contribute the electron domination in near-stoichiometric Fe-doped LiNbO3 crystal to the existence of NbLi which provides the anti-site defect to Fe^2＋.     

锗酸铜晶体压致非晶化的研究

High-pressure Raman spectra of copper metagermanate(CuGeO3) are presented,.Above 70 kbar copper metagermanate becomes amorphous,in the range of 70-125 kbar the transition is veversible,above 141 kbar is irreversible.The recrystallization process of pressure-induced amorphous state were investigated.     

高温下单壁碳纳米管的拉曼光谱研究

本文采用对样品进行直接加热和测温的方法,对单壁碳纳米管(SWNT)高温下的拉曼光谱进行了研究。在不同的激发波长下,观测了SWNT拉曼光谱的切向振动模频率随温度的变化,发现其频率随温度增加而降低,基本呈线性变化,温度系数约-0.014cm-1/K。不同的激发波长下,切向振动模频率随温度的变化行为基本一致。