title: Synthesis and molecular characterization of chitosan based polyurethane elastomers using aromatic diisocyanate.
abstract: The present research work was performed to synthesize a new series of chitosan based polyurethane elastomers (PUEs) using poly(ɛ-caprolactone) (PCL). The chitosan based PUEs were prepared by step-growth polymerization technique using poly(ɛ-caprolactone) (PCL) and 2,4-toluene diisocyanate (TDI). In the second step the PU prepolymer was extended with different mole ratios of chitosan and 1,4-butane diol (BDO). Molecular engineering was carried out during the synthesis. The conventional spectroscopic characterization of the synthesized samples using FT-IR confirms the existence of the proposed chitosan based PUEs structure. Internal morphology of the prepared PUEs was studied using SEM analysis. The SEM images confirmed the incorporation of chitosan molecules into the PU backbone.
authors: Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan. Electronic address: ziakmpkpolym@yahoo.com.
authors: Khalid Mahmood
authors: KM
authors: Zia
authors: Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan.
authors: Sohail
authors: S
authors: Anjum
authors: Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan.
authors: Mohammad
authors: M
authors: Zuber
authors: School of Chemical & Materials Engineering, National University of Science & Technology, H-12 Islamabad, Pakistan.
authors: Muhammad
authors: M
authors: Mujahid
authors: Department of Polymer Engineering, University of the Punjab, Lahore, Pakistan.
authors: Tahir
authors: T
authors: Jamil
mesh_terms: D002072:Butylene Glycols / Q000737:chemistry; D002208:Caproates / Q000737:chemistry; D048271:Chitosan / Q000737:chemistry*; D020724:Elastomers / Q000737:chemistry*; D017953:Isocyanates / Q000737:chemistry; D007783:Lactones / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry*
chemical_list: D002072:Butylene Glycols; D002208:Caproates; D020724:Elastomers; D017953:Isocyanates; D007783:Lactones; D011108:Polymers; D011140:Polyurethanes; C121056:caprolactone; C039681:1,4-butanediol; D048271:Chitosan
keywords: 2,4-Toluene diisocyanate; Chitosan; FT-IR; Poly(ɛ-caprolactone); Polyurethane; SEM