Iranian Journal of Polymer Science and Technology 10163255 12 4 1999 12 22 The Synthesis of Polytetramethylene Ether Glycol with Specific Molecular Weight and Narrow Distribution by Cationic Ring Opening Polymerization of THF and Protonated Acids Application of Chitosan as an Adsorbent for Colour The Synthesis of Polytetramethylene Ether Glycol with Specific Molecular Weight and Narrow Distribution by Cationic Ring Opening Polymerization of THF and Protonated Acids Application of Chitosan as an Adsorbent for Colour 312 10.22063/jipst.1999.312 FA M. Mirzataheri M. 0000-0002-6553-982x Journal Article 1970 01 01 http://jips.ippi.ac.ir/article_312_cc35a445bb09950fe9dd626604c5d39f.pdf