聚合物载体-稀土金属配合物的研究ⅩⅦ聚(苯乙烯-4-乙烯基吡啶)钕配合物在丁二烯聚合中的催化行为

聚合物载体－稀土金属配合物的研究．聚（苯乙烯－４－乙烯基吡啶）钕配合物在丁二烯聚合中的催化行为李晓莉于广谦＊李玉良（中国科学院长春应用化学研究所长春１３００２２）关键词苯乙烯，乙烯基吡啶，共聚物，钕配合物，丁二烯聚合１９９６－０４－１１收稿，１９９６...     

倒浮萍聚合物LB膜的有序－无序相变研究

倒浮萍聚合物ＬＢ膜的有序－无序相变研究李宏斌，张希，张瑞丰，赵冰，徐尉青，沈家骢，高忠民（吉林大学分子光谱与分子结构开放实验室、化学系，分析测试中心，长春，１３００２３）关键词聚合物ＬＢ膜，有序－无序相变，变温红外光谱，变温小角Ｘ光衍射ＬＢ膜的有序－...     

杂多阴离子柱撑水滑石层柱相互作用(Ⅰ)

杂多阴离子柱撑水滑石层柱相互作用（Ⅰ）李兴林＊佘益民郭军蒋大振（中国科学院长春应用化学研究所长春１３００２２）（吉林大学化学系长春）关键词杂多阴离子，柱撑水滑石，ＸＰＳ，ＩＲ，ＸＲＤ１９９６－０６－１８收稿，１９９６－１０－１２修回国家自然科学基金资...     

锌电沉积与丙烯酸盐聚合的复合过程

锌电沉积与丙烯酸盐聚合的复合过程姚素薇廖川平＊郭鹤桐（天津大学应用化学系天津３０００７２）关键词电沉积，电聚合，复合镀层，聚合物膜１９９６－０６－０７收稿，１９９６－０８－０９修回国家自然科学基金资助课题让锌的电沉积与丙烯酸盐的电化学引发自由基聚合［...     

二价芳氧钐配合物催化苯乙烯聚合

二价芳氧钐配合物催化苯乙烯聚合齐贵中扈晶余＊沈琪（中国科学院长春应用化学研究所稀土化学与物理开放实验室长春１３００２２）（苏州大学化学系苏州）关键词钐配合物，苯乙烯，聚合１９９６－０５－１８收稿，１９９６－１０－３０修回国家科委攀登计划及国家自然科学...     

分子结构对聚芳醚酮薄膜透气性的影响

分子结构对聚芳醚酮薄膜透气性的影响王忠刚，陈天禄，徐纪平（中国科学院长春应用化学研究所长春１３００２２）关键词聚芳醚酮，气体分离膜，结构－性能关系为了改善聚合物薄膜的透气性能，开发具有高透气性和高选择性的膜材料，人们对膜分子结构与透气性能间的关系进行...     

核／壳结构聚丙烯酸酯塑料增韧剂的制备与结构控制

核／壳结构聚丙烯酸酯塑料增韧剂的制备与结构控制张会轩戴英杨海东＊冯之榴（吉林工学院化工系长春１３００１２）（中国科学院长春应用化学研究所１３００２２）关键词聚丙烯酸酯，增韧剂，制备，种子乳液聚合１９９６－０８－２８收稿，１９９７－０１－０６修回国家自...     

丁腈羟增韧环氧树脂固化反应

丁腈羟增韧环氧树脂固化反应李绍英＊＊韩孝族＊刘振海张庆余（中国科学院长春应用化学研究所长春１３００２２）关键词丁腈羟，增韧环氧树脂，固化反应动力学，ＤＳＣ１９９６－０５－０４收稿，１９９６－０９－１７修回＊＊现在河北轻化工学院化工设计研究所工作环氧树...     

碳纤维表面的液相氧化处理改性

碳纤维表面的液相氧化处理改性赵东宇＊李滨耀余赋生（中国科学院长春应用化学研究所长春１３００２２）关键词碳纤维，表面改性，氯酸钾，硫酸１９９６－１０－２４收稿，１９９７－０５－２９修回＊现在黑龙江大学化学系（哈尔滨，１５００８０）碳纤维具有高强、高模、...     

离子聚合物在Nylon－1010／PP共混物中的增容作用

离子聚合物在Ｎｙｌｏｎ－１０１０／ＰＰ共混物中的增容作用曲桂杰，刘景江（中国科学院长春应用化学研究所长春１３００２２）关键词聚丙烯，Ｎｙｌｏｎ－１０１０，离子聚合物，增容选择离子聚合物作为高聚物共混的增容剂，通过离子间的相互作用可达到增容效果［１］。...     

Dichroism of absorption and polarization of phosphorescence of molecules of the closed form of nitrobenzospirothiopyran

The spectral-polarization characteristics of absorption and phosphorescence of molecules of the initial form of nitro-substituted indolinospirobenzothiopyran were studied in oriented polyethylene films and in solutions with different polarity. An oscillator model of the electron transitions responsible for the formation of absorption and luminescence spectra was suggested. It was established that the principal differences in the spectral and photophysical properties of the compound studied and its oxygen-containing analog are associated with the fact that the electronegativity of the S atom is lower than that of the O atom. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1143–1146, June, 1997.     

Determination of heats of detonation and influence of components of composite explosives on heats of detonation of high explosives

The heats of detonation of 20 simple high explosives and explosive mixtures were determined by means of an adiabatic detonation calorimeter designed by the authors. The results indicated that the performance of the instrument was reliable and the experimental data were very accurate. For explosive mixtures, there was a linear accumulative relationship between the heats of detonation of the explosive mixture and its components. Accordingly, the heats of detonation of explosive mixtures could be calculated directly from the heats of detonation of simple explosives and the characteristic heats of other components. The experiments showed that the gold or brass shell of the cylindrical charge could be substituted by a thick-walled porcelain shell, which had the advantage of cheapness.

     

非那雄胺合成工艺改进

非那雄胺能抑制5α-还原酶的活性,明显降低二氢睾酮水平,是一种治疗良性前列腺增生的有效药品。该合成工艺以甾烯酮酸为原料,将其与氯化亚砜反应,无须分离即与叔丁胺反应得17β-酰胺化合物,再氧化开环,环合,氢化,脱氢合成了非那雄胺。经元素分析、IR、1HNMR、13CNMR、MS分析表征了其结构。该法无须使用昂贵的2,2-二吡啶二硫化物和剧毒药品苯亚硒酸酐,且以乙酸铵代替氨气,降低了对设备的要求和腐蚀,更适用于工业生产。     

Synthesis of phenolic components of Grains of Paradise

Two vanilloids, (5E)-8-(4-hydroxy-3-methoxyphenyl)oct-5-en-4-one (1) and 4-[3-hydroxydecyl]-2-methoxyphenol (2), isolated from the dried seeds of Grains of Paradise (Aframomum melegueta), were synthesized; the latter compound was made as the S-enantiomer and the material derived from the seeds was found to be a 1:1.7 mixture of the R and S isomers. The synthetic route used should allow the preparation of analogs having extended alkyl chains and consequently different lipophilicity, and 3, a homolog of 2, was also prepared.     

恶臭嗅辨实验室建设探讨

针对恶臭测试的环境影响问题,提出了解决的实例方案,并对方案的要点及优缺点进行讨论,此方案在实际操作中具有较好的效果。     

Summary of development of the theory of stability of colloids and thin films

In this review, the research of the author in the field of colloidal systems is summarized. The factors influencing colloidal stability are systematized and analyzed. Examples are presented to illustrate the practical utilization of the theory of stability of colloids and thin films.This review was prepared on the basis of the works of the author, which were awarded the State Premium for 1991 in the field of science and technology, chemistry section.Institute of Physical Chemistry, Russian Academy of Sciences, 117915 Moscow. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 8, pp. 1708–1717, August, 1992.     

Study of hydration of two cements of different strengths

Main hydration products of two cement pastes, i.e. CSH-gel, portlandite (P) (and specific surface S) were studied by static heating, and by SEM, TEM and XRD, as a function of cement strength (C-33 and C-43) hydration time (th) and subsequent hydration in water vapour.Total change in mass on hydration and air drying, M_o, increased with strength of cement paste and with hydration time. Content of water escaping at 110 to 220°C, defined as water bound with low energy, mainly interlayer and hydrate water, was independent on cement strength but its content increased with (th). Content of chemically bound (zeolitic) water in CSH-gel, escaping at 220-400°C, was slightly dependent on strength and increased with (th). It was possibly derived from the dehydroxylation of CSH-gel and AFm phase. Portlandite water, escaping at 400-500°C, was independent on cement strength and was higher on longer hydration. Large P crystals were formed in the weaker cement paste C-33. Smaller crystals were formed in C-43 but they increased with (th). Carbonate formated on contact with air (calcite, vaterite and aragonite), decomposed in cement at 600-700^oC. It was high in pastes C-33(1 month) and C-43(1 month), i.e. 5.7 and 3.3%, respectively; it was less than 1% after 6 hydration months (low sensitivity to carbonation) in agreement with the XRD study showing carbonates in the air dry paste (1month), and its absence on prolonged hydration (6 months) and on acetone treatment. Water vapour treatment of (6 months) pastes or wetting-drying increased this sensitivity.Nanosized P-crystals, detected by TEM, could contribute to the cement strength; carbonate was observed on the rims of gel clusters.This revised version was published online in November 2005 with corrections to the Cover Date.     

解决能源问题的新途径——光解水制氢的研究

面对日益枯竭的能源危机,氢能是一种洁净、最有前景的替代能源。目前在各种制氢的方法中光催化分解水制氢的研究最多,光解水过程中催化剂最关键,本文对利用太阳能光解水的途径、提高光催化反应效率以及光催化剂的开发研究进行了综述。     

黄酮化合物的合成研究进展

黄酮化合物是一类具有多种生物活性的天然产物,其经典的合成方法主要为查耳酮路线和β-丙二酮路线.近年来出现了许多新技术、新方法.本文介绍了2'-羟基查尔酮的氧化关环法、黄烷酮氧化法、改进的Baker-Venkataraman法及其他合成黄酮化合物的方法.