全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

硅烷化改性MCM-41负载戊二酸锌催化CO2与环氧丙烷共聚制备可降解材料

Keywords: 二氧化碳,环氧丙烷,戊二酸锌,硅烷化,负载

Full-Text   Cite this paper   Add to My Lib

Abstract:

以三甲基氯硅烷(TMCS)为硅烷化试剂,对MCM-41分子筛进行表面改性处理,并以此为载体制备负载型戊二酸锌催化剂(ZnGA/TMCS-MCM-41);采用红外光谱、氮气吸附-脱附和X射线衍射等分析手段对催化剂进行表征,结果表明:三甲基氯硅烷基团被成功接枝到MCM-41分子筛表面,形成比表面积略低的硅烷化MCM-41载体,但其骨架未被破坏,负载活性物质过程中,戊二酸锌能以更小的粒径均匀分散到载体的表面;聚合反应实验表明,与单纯戊二锌催化剂相比,ZnGA/TMCS-MCM-41催化剂对CO2与环氧丙烷(PO)的共聚反应显示出更高的催化效率和更快的反应速度,在反应34h后催化效率达到86.3g聚合物/gZnGA;红外光谱和核磁分析表明所得共聚产物中碳酸酯结构含量大于95.8%。

References

[1]  Renaud R.,Sylvain C.Fighting global warming:The potential of photo catalysis against CO2,CH4,N2O,tropospheric O3,BC and other major contributors to climate change.Journal of Photochemistry and Photobiology C:Photochemistry Reviews,2011,12(1):1-19
[2]  胡林,冉景煜,张力等.活性炭纤维脱除二氧化碳的实验研究.环境工程学报,2010,4(1):169-172 Hu L.,Ran J.Y.,Zhang L.,et al.Experimental study of carbon dioxide removal by activated carbon fibers.Chinese Journal of Environmental Engineering,2010,4(1):169-172(in Chinese)
[3]  Ma J.,Sun N.N.,Zhang X.L.,et al.A short review of catalysis for CO2 conversion.Catal.Today,2009,148(3-4):221-231
[4]  魏伟,孙予罕,闻霞,等.二氧化碳资源化利用的机遇与挑战.化工进展,2011,30(1):225-233 Wei W.,Sun Y.H.,Wen X.,et al.Opportunities and challenges of carbon dioxide utilization as a resource.Chemical Industry and Engineering Progress,2011,30(1):225-233(in Chinese)
[5]  Stephan K.,Maximilian W.L.,Carly E.,et al.Recent advances in CO2/epoxide copolymerization-New strategies and cooperative mechanisms.Coordination Chemistry Reviews,2011,225(13-14):1460-1479
[6]  Okada M.Chemical syntheses of biodegradable polymers.Progress in Polymer Sci.,2002,27(1):87-133
[7]  Xia Z.,Fariba D.Solvent free synthesis of organometallic catalysts for the copolymerisation of carbon dioxide and propylene oxide.Applied Catalysis B:Environmental,2010,98(3):101-111
[8]  Wang S.J.,Du L.C.,Zhao X.S.,et al.Synthesis and characterize-ation of alternating copolymer from carbon dioxide and propylene oxide.Journal of Applied Polymer Science,2002,85(11):2327-2334
[9]  Quan Z.L.,Wang X.H.,Zhao X.J.,et al.Copolymerization of CO2 and propylene oxide under rare earth ternary catalyst:Design of ligand in yttrium complex.Polymer,2003,44(19):5605-5610
[10]  陈上.双金属氰化络合物催化环氧化物与CO2共聚反应研究.杭州:浙江大学博士学位论文,2004 Chen Shang.Copolymerization of epoxides with carbon dioxide catalyzed by double metal cyanide complex.Hangzhou:Doctoral Dissertation of Zhejiang University,2004
[11]  Li W.Z.,Qin C.G.,Lv C.S.,et al.Eu3+ and lysine co-intercalated a-zirconium phosphate and its catalytic activity for copolymerization of propylene oxide and CO2.Catalysis Letters,2004,94(1):95-102
[12]  Ree M.,Bae J.Y.,Jung J.H.,et al.A new copolymeriza-tion process leading to poly(propylene carbonate)with a highly enhanced yield from carbon dioxide and propylene oxide.Journal of Polymer Science:Part A.Polymer Chemistry,1999,37(12):1863-1876
[13]  Kim J.S.,Ree M.,Lee S.W.,et al.NEXAFS spectroscopy studies on the surface properties of zinc glutarate and Its reactivity with carbon dioxide and propylene oxide.J.Catal.,2003,218(2):386-395
[14]  Rokicki A.,Kuran W.The application of carbon dioxide as a direct material for polymer synthesis in polymerization and polycondensation reactions.Macromol.Sci.Rev.:Macromol.Chem.,1981,21(1):135-186
[15]  Wang T.,Zhu Q.,Lu X.L.,et al.ZnGA-MMT catalyzed the copolymerization of carbon dioxide with propylene oxide.European Polymer Journal,2005,41(5):1108-1114
[16]  翟庆洲,刘磊,李晓东,等.苯基化纳米MCM-41材料的制备与表征.无机化学学报,2009,25(4):679-684 Zhai Q.Z.,Liu L.,Li X.D.,et al.Preparation and characterization of phenylated nanom eter M CM-41 material.Chinese Journal of Inorganic Chemistry,2009,25(4):679-684(in Chinese)
[17]  Chahinez A.,Douniazad E.A.,Michel G.,et al.The reductive dimerization of some 1,3-dienes and of 1,3,5-cycloheptatriene in the presence of trimethylchlorosilane:A DFT investingtion.Tetrahedron,2009,65(29):5563-5570

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133