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	增效反应中聚合氯化铝红外结构特征的变化; Structural Characteristics of Infrared Spectra for Polyaluminum Chloride in Enhanced Reactions of Modification
	周风山 ; 王世虎 ; 苏金柱 ; 孙虎 ; 丁洁 ; 徐怡庄 ; 吴瑾光
	2004
关键词	絮凝剂 聚合氯化铝(PAC) 增效反应 红外光谱 改性剂 inorganic polymer flocculants (IPFs) polyaluminum chloride(PAC) enhanced reaction of modification FTIR modifier
英文摘要	对聚合氯化铝(PAC)进行增效改性是制备高性能无机高分子絮凝剂的重要手段之一. 用多核络合剂络合、聚合硅酸交联和聚丙烯酰胺复合三种增效方法改性PAC, 分别获得了结构有别于PAC的新型絮凝剂CO-PAC, CR-PAC和PAM-PAC. 其傅里叶红外光谱(FTIR)表明, 在三种无机高分子结构中均存在Al-OH以外的新化学键, 且原有基团的特征吸收峰位置因受结构畸变而发生一定的低频红移, 证实了PAC增效反应并不是单纯的物理混合加成作用, 而是形成了具有特殊结构的无机高分子的化学反应. 这类无机高分子絮凝剂所具有的优良絮凝特性是由增效剂和PAC间以化学作用为主的物理化学因素共同作用的结果.; As an important preparation method of Inorganic Polymer Flocculants (IPFs) with all-round performance, the use of enhanced reactions of modification for Polyaluminum Chlorides (PAC) is a trend of application. In this paper, auctorial-made multicore oligomers as a complexing agent, polysilicate as a crosslinking agent and polyacrylamide as a compounding agent are respectively used to enhance PAC and prepared three kinds of IPFs, named CO-PAC, CR-PAC and PAM-PAC. The Fourier Transform Infrared spectra (FTIR) of the three flocculants show that there have been found new chemical bonds beyond Al-OH in their structures, and each characteristic band of primary group in PAC has a band shift to a lower frequency dure to its structural aberration. These evidences suggested that enhanced reactions of modification for PAC are not at all a simple process of physical mix, but a chemical reaction to form other structural characteristics of inorganic polymers. The excellent coagulation behavior of these new flocculants depends mainly on the chemical actions, but there are a little physical effects between the modifiers and PAC.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000221744400005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); PubMed; 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 3; 5; 532-535; 24
语种	中文
出处	万方 ; SCI ; PubMed ; http://d.g.wanfangdata.com.cn/Periodical_gpxygpfx200405005.aspx
出版者	光谱学与光谱分析
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/77944]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	周风山,王世虎,苏金柱,等. 增效反应中聚合氯化铝红外结构特征的变化, Structural Characteristics of Infrared Spectra for Polyaluminum Chloride in Enhanced Reactions of Modification. 2004-01-01.

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