Physicochemical analysis of the system polyacrylonitrile?Sodium thiocyanate?Water in the gel-like state

Ur’yash, V. F.; Maslova, V. A.; Barsukov, I. A.; Mochalov, A.N.

doi:10.1007/bf00556769

Cited by 1 publication

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“…유기용매는 그 자체로 PAN 고분자를 용해시키며, NaSCN과 KSCN은 50% 이상의 수 용액이 되면 PAN을 용해시킬 수 있다. PAN이 용해되어 있는 이들 용액에 비용매인 물 등을 첨가하면 PAN 고분자 의 응집이 일어나 침전이 발생하며, 그 정도는 비용매의 첨 가 비율에 따라 달라진다 [11,13] …”

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Effects of the Swelling of Polyacrylonitrile Films in Various Aqueous Solutions on Their Reaction with Hydrazine

Park¹,

Kim²

2014

Textile Science and Engineering

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Swelling behaviors of polyacrylonitrile (PAN) films in various aqueous solutions, such as N,N'-dimethylformamide (DMF)/water, N,N'-dimethylacetamide (DMAc)/water, dimethylsulfoxide (DMSO)/water, NaSCN or KSCN solution, the effects of the concentrations of these solutions, and the effects of swelling temperature and time on the degree of swelling of PAN films were analyzed. Among the various aqueous solutions, DMF and NaSCN solution were found to be effective for high swelling of PAN films. High swelling of PAN films in the hydrazine solutions wherein aqueous, organic solvents or salt solutions were used as solvents for hydrazine, resulted in higher absorption of hydrazine and a high degree of cross-linking. Analysis of the bands of FT-IR spectra and the cyclization peaks of DSC curves for various hydrazine-treated PAN films showed that the effective cross-linking of PAN films at the same hydrazine concentration was obtained by using DMF/water or NaSCN/water solutions as solvents for hydrazine and treating medium for PAN films.

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Section: 서 론unclassified

Effects of the Swelling of Polyacrylonitrile Films in Various Aqueous Solutions on Their Reaction with Hydrazine

Park¹,

Kim²

2014

Textile Science and Engineering

View full text Add to dashboard Cite

show abstract

Physicochemical analysis of the system polyacrylonitrile?Sodium thiocyanate?Water in the gel-like state

Cited by 1 publication

References 2 publications

Effects of the Swelling of Polyacrylonitrile Films in Various Aqueous Solutions on Their Reaction with Hydrazine

Effects of the Swelling of Polyacrylonitrile Films in Various Aqueous Solutions on Their Reaction with Hydrazine

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