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Citation: Cheng Chuanxuan, Su Yingeao. FORMATION OF RESINOUS SUBSTANCE FROM POLYVINYL ALCOHOL AND Cr(Ⅲ)[J]. Chinese Journal of Applied Chemistry, ;1993, 10(1): 66-70. shu

FORMATION OF RESINOUS SUBSTANCE FROM POLYVINYL ALCOHOL AND Cr(Ⅲ)

Cheng Chuanxuan ¹ ,
Su Yingeao ²

1.
1. Department of Chemistry, Fujian Normal University, 350007 Fuzhou;
2.
2. Institude of Polymer Science, Fujian University, 350007 Fuzhou

Received Date: 3 March 1992
Available Online: 2 July 1992

A greyish blue resinous substance was separated by adding Cr³⁺ to a basic aqueous solution of 5% PVA at 12 ≤pH ≤13. The formation of the resinous substance has been studied by XPS,ESR, IR and electrophoretie techniques. It is considered that at the experimental conditions deprotonation of some hydroxyl groups in the PVA may afford a ligand L^- which may form coordinate with Cr³⁺ through partial ionic bond. Thus,it results in a cross-linking between Cr³⁺ and deprotonated hydroxyl groups of PVA. The product is paramagnetic. This phenomena may be applied to treating Cr³⁺ containing waste for chromium recovery by dissolving the complex in hydrochloric acid.
- polyvinyl alcohol,
- chromium ion,
- coordination polymer
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FORMATION OF RESINOUS SUBSTANCE FROM POLYVINYL ALCOHOL AND Cr(Ⅲ)

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com