Document Details

Document Type : Article In Journal 
Document Title :
Synthesis and characterization of (poly (N-vinyl formamide)-pregelled starch-graft copolymer
Synthesis and characterization of (poly (N-vinyl formamide)-pregelled starch-graft copolymer
 
Subject : Chemistry 
Document Language : English 
Abstract : Bromate / cyclohexanone redox system was investigated as a novel initiator for graft copolymerization of N-vinyl formamide onto pregelled starch. A number of variables in the grafting reaction were investigated including N-vinyl formamide, cyclohexanone, bromate ion, sulphuric acid and pregelled starch concentrations, material to liquor ratio along with polymerization time and temperature. The graft copolymers were evaluated in terms of graft yield, graft reaction efficiency and homopolymer formation (%). The optimum conditions for grafting of N-vinyl formamide onto pregelled starch are: N-vinyl formamide 50% based on weight of substrate, cyclohexanone 15 mmol / l, bromate ion, 30 mmol / l, liquor ratio 10, pH 6, time 120 min., and temperature 40°C. On the other hand, characterizations of the resultant copolymers with respect to swelling capacity, solubility %, metal ion up-take and suitability as a sizing agent for cotton textiles were investigated. The results obtained reflect that, the resultant copolymer shows better results for the aforementioned properties in comparison with that obtained from native pregelled starch as a starting substrate. 
ISSN : 1022-9760 
Journal Name : Journal of Polymer Research 
Volume : 17 
Issue Number : 6 
Publishing Year : 1431 AH
2010 AD 
Article Type : Article 
Added Date : Saturday, October 29, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
خالد محمد مصطفىMostafa, Khaled MResearcherDoctoratekh_mostafa@hotmail.com
عبدالرحيم عبدالرحمن سمرقنديSamarkandy, Abdul Rahim Abdul-RahmanResearcherDoctoratekandy@kau.edu.sa
Azza A El-SanabaryEl-Sanabary, Azza AResearcherDoctorate 

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