Thermally modified acrylic polymers as sorbents

Simitzis, Johannis

dc.contributor.author	Simitzis, Johannis	en
dc.date.accessioned	2014-03-01T01:11:33Z
dc.date.available	2014-03-01T01:11:33Z
dc.date.issued	1995	en
dc.identifier.issn	0959-8103	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11698
dc.subject	ACRYLIC POLYMERS	en
dc.subject	DIFFUSION	en
dc.subject	SORBENTS	en
dc.subject	THERMAL MODIFICATION	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Amines	en
dc.subject.other	Chemical modification	en
dc.subject.other	Diffusion	en
dc.subject.other	Dyes	en
dc.subject.other	Infrared spectroscopy	en
dc.subject.other	Pyrolysis	en
dc.subject.other	Sorption	en
dc.subject.other	Alizarin yellow	en
dc.subject.other	Ethylene deamine	en
dc.subject.other	Methylene blue	en
dc.subject.other	Pore size distribution	en
dc.subject.other	Sorbents	en
dc.subject.other	Specific surface area	en
dc.subject.other	Thermal modification	en
dc.subject.other	Acrylics	en
dc.subject.other	acrylic fibres	en
dc.subject.other	fibre modification	en
dc.subject.other	pyrolysis	en
dc.title	Thermally modified acrylic polymers as sorbents	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/pi.1995.210360307	en
heal.identifier.secondary	http://dx.doi.org/10.1002/pi.1995.210360307	en
heal.language	English	en
heal.publicationDate	1995	en
heal.abstract	Acrylic fibres were modified with ethylene diamine and pyrolysed at temperatures up to 600 degrees C. According to IR spectroscopy, polymers pyrolysed at 300 degrees C contain nitrile and other groups which are present in the initial polymer. The specific surface area is decreased by increasing the pyrolysis temperature. The pore size distribution reveals mainly the presence of macropores. Acrylic polymers and those pyrolysed at 300 degrees C sorb more methylene blue and alizarin yellow from aqueous solution than a non-polar commercial sorbent of high specific surface area. The experimental results for dye sorption were treated theoretically using a diffusion-limited sorption method. The polymers can be ranked by the parameters of this method or their sorption ability. The dye sorption is little affected by the pores of the polymers and is mainly affected by the interactions between the functional groups of the polymers and those of the dyes.	en
heal.publisher	John Wiley & Sons Ltd, Chichester, United Kingdom	en
heal.journalName	Polymer International	en
dc.identifier.doi	10.1002/pi.1995.210360307	en
dc.identifier.isi	ISI:A1995QP98200007	en
dc.identifier.volume	36	en
dc.identifier.issue	3	en
dc.identifier.spage	279	en
dc.identifier.epage	285	en