NOPR Collection:
http://nopr.niscpr.res.in/handle/123456789/30775
2026-10-09T02:17:31ZGraft copolymerization of ethyl methacrylate onto polyvinyl alcohol using ceric ion initiator
http://nopr.niscpr.res.in/handle/123456789/30869
Title: Graft copolymerization of ethyl methacrylate onto polyvinyl alcohol using ceric ion initiator
Authors: Chowdhury, P
Abstract: <span style="font-size:11.0pt;line-height:115%;
font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">The effect of reaction
conditions on grafting parameters during the grafting of ethyl methacrylate
(EMA) onto polyvinyl alcohol (PVA) using ceric ammonium sulfate (CAS) initiator
has been studied. The grafting efficiency (GE) was found to be optimum at a
particular level of EMA, CAS, PVA, <span style="font-size:11.0pt;
line-height:115%;font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;="" mso-fareast-font-family:"times="" new="" roman";mso-fareast-theme-font:minor-fareast;="" mso-hansi-theme-font:minor-latin;mso-bidi-font-family:arial;mso-ansi-language:="" en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">H<sub>2</sub>SO<sub>4</sub>,
<span style="font-size:11.0pt;line-height:115%;font-family:" calibri","sans-serif";="" mso-ascii-theme-font:minor-latin;mso-fareast-font-family:"times="" new="" roman";="" mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:minor-latin;="" mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa"="">temperature and time. Acid hydrolysis and
infrared spectroscopy (IR) were used for the confirmation of graft copolymer
formation. The X-ray diffraction (XRD) pattern and thermogravimetric analysis
(TGA) of PVA and a representative graft copolymer were studied. The plausible
mechanism of grafting has been suggested.</span></span></span>
Page(s): 346-3501998-09-01T00:00:00ZUtility of some new multifunctional additives to Egyptian gasoline
http://nopr.niscpr.res.in/handle/123456789/30868
Title: Utility of some new multifunctional additives to Egyptian gasoline
Authors: Hassan, H M
Abstract: <span style="font-size:11.0pt;line-height:115%;
font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">Arylazoacetylacetones, arylazoacetamides
and arylazomalonates have been used as multifunction additives for Egyptian
gasoline. Treating these azodye derivatives with phenyl hydrazine, hydrazine
hydrate and hydroxylamine give heterocyclic derivatives which have also been
examined as additives.</span>
Page(s): 343-3451998-09-01T00:00:00ZDry synthesis of 'Biginelli' compounds using inorganic solid support coupled with microwave irradiation : An environmentally co-friendly synthesis
http://nopr.niscpr.res.in/handle/123456789/30867
Title: Dry synthesis of 'Biginelli' compounds using inorganic solid support coupled with microwave irradiation : An environmentally co-friendly synthesis
Authors: Gupta, Rajive; Paul, Satya; Gupta, Avinash K
Abstract: <span style="font-size:11.0pt;line-height:115%;
font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">A simple and high yielding
environmentally co-friendly method has been developed for the synthesis of
'Biginelli' compounds as potent mimics of DHP's in dry conditions using
inorganic solid supports coupled with microwave irradiation. Specific
non-thermal effect of the microwave irradiation has been observed.</span>
Page(s): 340-3421998-09-01T00:00:00ZRegeneration and recycling of waste Fe(III)/Cr(III) hydroxide for the continuous adsorption of Ni(II) and Cr(VI)
http://nopr.niscpr.res.in/handle/123456789/30866
Title: Regeneration and recycling of waste Fe(III)/Cr(III) hydroxide for the continuous adsorption of Ni(II) and Cr(VI)
Authors: Namasivayam, C; Ranganathan, K
Abstract: <span style="font-size:11.0pt;line-height:115%;
font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">The waste Fe (III)/Cr (III)
hydroxide is recycled after alternating adsorption and desorption of Ni (II)
and Cr (VI). Six regeneration cycles have been observed without any significant
loss in metal removal efficiency of the adsorbent.</span>
Page(s): 337-3391998-09-01T00:00:00Z