STUDY ON THE KINETICS OF ACRYLAMIDE POLYMERIZATION INITIATED BY DIPERIODATONICKELATE (Ⅳ) PERIODATE COMPLEX

LIU Yinghai; SHANG Yajuan; LI Weiping; WANG Chenhong; DENG Kuilin

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STUDY ON THE KINETICS OF ACRYLAMIDE POLYMERIZATION INITIATED BY DIPERIODATONICKELATE (Ⅳ) PERIODATE COMPLEX

Research Bulletin | 更新时间：2021-03-19

- STUDY ON THE KINETICS OF ACRYLAMIDE POLYMERIZATION INITIATED BY DIPERIODATONICKELATE (Ⅳ) PERIODATE COMPLEX
- Acta Polymerica Sinica Issue 2, Pages: 235-238(2000)
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- Published：20 April 2000，
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LIU Yinghai, SHANG Yajuan, LI Weiping, WANG Chenhong, DENG Kuilin. STUDY ON THE KINETICS OF ACRYLAMIDE POLYMERIZATION INITIATED BY DIPERIODATONICKELATE (Ⅳ) PERIODATE COMPLEX. [J]. Acta Polymerica Sinica (2):235-238(2000)
DOI：

LIU Yinghai, SHANG Yajuan, LI Weiping, WANG Chenhong, DENG Kuilin. STUDY ON THE KINETICS OF ACRYLAMIDE POLYMERIZATION INITIATED BY DIPERIODATONICKELATE (Ⅳ) PERIODATE COMPLEX. [J]. Acta Polymerica Sinica (2):235-238(2000) DOI：

摘要

近年来

人们对过渡金属的超常价态有着浓厚的兴趣 .对超常氧化态如Ｃｕ(Ⅲ )、Ｎｉ(Ⅳ )、Ａｇ(Ⅲ )等的研究无疑会给人们提供新的知识 .我们曾报道过超常价态过渡金属Ｃｕ(Ⅲ )

Ａｇ(Ⅲ )用于引发自由基聚合反应的研究[1～3] .对于超常价态Ｎｉ(Ⅳ )用于引发自由基聚合反应的研究

国内外报道较少 .一般文献认为

Ｎｉ(Ⅳ )与小分子间的氧化还原反应属双电子转移反应

没有中间自由基产生

故不能引发烯类单体聚合[4

5] .虽?...

Abstract

The kinetics of acrylamide (AAM) polymerization initiated by diperiodatonickelate(Ⅳ) periodate complex was studied in aqueous alkaline medium.The results indicate that the equation of the polymerization rate is as follows:Rp=k[Ni(Ⅳ)]0.72 [AM]1.41 and the overall activation energy of AAM polymerization is 41.33kJ/mol.The polymer molecular weight decreases with increasing [Ni(Ⅳ)] and increases with increasing [AAM].The effects of various reaction conditions on the polymerization rate were also studied.The initiation mechanism was proposed.

关键词

二羟基二过碘酸合镍(Ⅳ)氧化反应引发丙烯酰胺

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