材料期刊网

{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"建立了三元配合物MmLl催化反应的数学模型,并且以此方法获得催化反应的热力学和动力学参数.研究了在30±0.1℃,pH=7.10的条件下,La(Ⅲ)配合物催化水解PNPP(α-吡啶甲酸对硝基苯酚酯)的动力学行为,以及表面活性剂Brij35和CTAB对该催化水解反应的影响,并用建立的数学模型获得了La(Ⅲ)配合物催化水解PNPP的热力学和动力学参数.实验结果表明,在水解反应中配体活性的-OH是有效的亲核基团,使PNPP的水解速率增加,随着表面活性剂浓度的增大PNPP的水解速率变小.","authors":[{"authorName":"刘凡","id":"6b835597-b4d4-41b7-a530-887211dac349","originalAuthorName":"刘凡"},{"authorName":"徐森","id":"1fb34cae-d312-4f48-8aa2-117fbaeab959","originalAuthorName":"徐森"},{"authorName":"袁雪梅","id":"548c9c1b-5807-4c45-b83f-680f0b42f0fe","originalAuthorName":"袁雪梅"},{"authorName":"张元勤","id":"4c151cce-2056-44af-b710-167c8430da4d","originalAuthorName":"张元勤"}],"doi":"10.3969/j.issn.1004-0277.2006.05.012","fpage":"48","id":"6e8b8fb6-02c9-46fa-8d53-ef79b4bad190","issue":"5","journal":{"abbrevTitle":"XT","coverImgSrc":"journal/img/cover/XT.jpg","id":"65","issnPpub":"1004-0277","publisherId":"XT","title":"稀土"},"keywords":[{"id":"2f23c384-f44b-416f-92a9-067cfaeef324","keyword":"N-十二烷基二乙醇胺-La3+","originalKeyword":"N-十二烷基二乙醇胺-La3+"},{"id":"cbae5dd1-280c-4d32-b5a1-7b4ab8528759","keyword":"配合物","originalKeyword":"配合物"},{"id":"c04804f5-be1b-4525-99fd-3c5a5bf9d2ec","keyword":"PNPP","originalKeyword":"PNPP"},{"id":"55bfb43e-5a75-4ef4-a0a5-cc65a7422c2e","keyword":"催化水解","originalKeyword":"催化水解"}],"language":"zh","publisherId":"xitu200605012","title":"N-十二烷基二乙醇胺-La3+催化水解α-吡啶甲酸对硝基苯酚酯的动力学研究","volume":"27","year":"2006"},{"abstractinfo":"由3,6-二氯哒嗪和脂肪醇在(C4H9)4NBr作相转移催化剂和浓碱存在下,合成了3-氯-6-烷氧基哒嗪.后者在三苯基膦钯的催化下,与对胆甾氧羰基苯基硼酸偶联,合成了8种中心桥连基为哒嗪环,含有苯环,胆甾基,酯基,不同烷氧基长度的3-烷氧基-6-(4-胆甾氧羰基苯基)哒嗪.用DSC法对其介晶性进行了表征,发现其中7种都具有介晶性.研究结果还表明,末端链长度对相变温度和清亮点温度均有影响,但对介晶相温度范围影响较小.","authors":[{"authorName":"熊俊如","id":"7adb5bd5-2644-4c5a-b1c6-707da58d6722","originalAuthorName":"熊俊如"},{"authorName":"向清祥","id":"18759e06-88d5-4e17-b823-cb93b35b27fd","originalAuthorName":"向清祥"},{"authorName":"张元勤","id":"20dd6710-d3f7-4a5d-8e13-cae1d1eb6533","originalAuthorName":"张元勤"}],"doi":"10.3969/j.issn.1000-0518.2003.11.016","fpage":"1088","id":"d8940f5b-7b4c-4c45-b003-79681ec137c1","issue":"11","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"b0323598-d05c-4302-a2d1-edd213263cb2","keyword":"哒嗪衍生物","originalKeyword":"哒嗪衍生物"},{"id":"78b5a818-6394-4d53-9a85-dc5056cdc92a","keyword":"合成","originalKeyword":"合成"},{"id":"b389dec2-c575-4855-b577-fae792bcd06e","keyword":"介晶性","originalKeyword":"介晶性"}],"language":"zh","publisherId":"yyhx200311016","title":"3,6-双取代哒嗪的合成和介晶性","volume":"20","year":"2003"},{"abstractinfo":"利用荧光光谱法,研究了1,4,7,10-四氮杂环十二烷合钴(Cyclen-Co(Ⅱ))配合物与牛血清白蛋白(BSA)的相互作用,用Stern-Volmer和Lineweaver-Burk方程确定了其荧光猝灭机理为静态猝灭,计算得到了在不同温度和pH值条件下以及在聚氧乙烯(23)月桂醇醚(Brij35)、十六烷基三甲基溴化铵(CTAB)、十二烷基硫酸钠(SDS)3种表面活性剂胶束溶液中,Cyclen-Co(Ⅱ)和BSA作用的结合点位数、结合常数和热力学参数,研究结果表明,其作用力主要为氢键和范德华力.","authors":[{"authorName":"刘凡","id":"f8df4eeb-ae46-47ca-97af-7d76fd49aadf","originalAuthorName":"刘凡"},{"authorName":"张元勤","id":"b33c7e26-3e4d-4ae3-82eb-8294a27583d8","originalAuthorName":"张元勤"},{"authorName":"张智锦","id":"b31fff88-a0cf-45ff-b374-dd49ffbc9acb","originalAuthorName":"张智锦"}],"doi":"10.3724/SP.J.1095.2013.20140","fpage":"232","id":"5d52ba71-4495-4889-a2e0-682be6cff6d4","issue":"2","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"ce1687a7-f716-4702-a0b8-f01d6eb62b88","keyword":"四氮杂环十二烷合钴","originalKeyword":"四氮杂环十二烷合钴"},{"id":"3c1b7159-3312-47fc-85f1-ca15eea1f3ab","keyword":"牛血清白蛋白","originalKeyword":"牛血清白蛋白"},{"id":"bf83a43e-62d8-40ed-8fae-3f98b18206ff","keyword":"荧光光谱","originalKeyword":"荧光光谱"},{"id":"844cccd2-d069-40bd-8c1c-46b0eea4833d","keyword":"结合位点数","originalKeyword":"结合位点数"},{"id":"c20779c8-644e-4ddc-b6f8-d3a5c90f6ec6","keyword":"结合常数","originalKeyword":"结合常数"}],"language":"zh","publisherId":"yyhx201302019","title":"1,4,7,10-四氮杂环十二烷合钴与牛血清白蛋白的相互作用","volume":"30","year":"2013"},{"abstractinfo":"张力调节是板带材生产工艺中的重要环节,为研究平整分卷线上三辊张力装置的增张机理和张力调节能力,采用弹塑性有限元方法对其工作过程进行数值模拟,得到了板厚、开卷张力、上张力辊压下量和设备结构参数等对张力装置增张能力的影响规律.将有限元模拟结果作为训练样本,结合国内某厂实测数据,建立了三辊张力装置增张能力的BP神经网络预测模型,预测结果与实测数据吻合良好,实现了张力调节定量控制.","authors":[{"authorName":"许石民","id":"19e1b82c-4fb6-4fd7-8331-6191035f5653","originalAuthorName":"许石民"},{"authorName":"黄华贵","id":"9caf8b77-a208-4058-811a-55c09c17ea8b","originalAuthorName":"黄华贵"},{"authorName":"臧新良","id":"f27b3a90-b44f-444f-a15f-b9548f313b35","originalAuthorName":"臧新良"},{"authorName":"杜凤山","id":"13c0be46-6277-429c-a9a0-3e88b5f4bb77","originalAuthorName":"杜凤山"},{"authorName":"蒋松","id":"27d54d06-1b96-48bc-aa98-a6fd0f62a7d0","originalAuthorName":"蒋松"}],"doi":"","fpage":"53","id":"bed55c6f-19c7-413c-a960-483a2717939f","issue":"7","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"036314ce-264a-4b1d-8bd8-13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