naa a22 4500 510819885 CHVBK 20180411083526.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11814-013-0166-9 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0166-9 Synthesis and properties of aqueous polyurethane dispersions: Influence of molecular weight of polyethylene glycol [Elektronische Daten] [Fatima Mumtaz, Mohammad Zuber, Khalid Zia, Tahir Jamil, Rizwan Hussain] Aqueous polyurethane dispersions (PUDs) have recently emerged as important alternatives to their solvent-based counterparts for various applications due to increasing health and environmental awareness. A series of aqueous polyurethane dispersions containing carboxylate anion as hydrophilic pendant groups were synthesized through step growth polymerization reaction using hexamethylene diisocyanate (HDI), 1,4-butanediol (1,4-BDO), dimethylol propionic acid (DMPA) and polyethylene glycol (PEG) of different molecular weight. Effect of PEG molecular weight was investigated on molecular structure, contact angle measurement, and physical and adhesive properties of PU emulsions. Fourier transform infrared spectroscopy (FT-IR) was used to check the completion of polymerization reaction. Contact angle measurement indicated that the hydrophilicity of polymer increases by increasing molecular weight of PEG with a corresponding decrease in contact angle. Results of T-peel test showed a decrease in peel strength by increasing molecular weight of PEG. Moreover, solid contents%, drying time and storage stability suggested fast drying properties and greater stability of aqueous PU dispersions. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Polyurethane nationallicence FT-IR nationallicence Adhesive Properties nationallicence Hydrophilicity nationallicence T-peel Test nationallicence Mumtaz Fatima Institute of Chemistry, Government College University, 38030, Faisalabad, Pakistan aut Zuber Mohammad Institute of Chemistry, Government College University, 38030, Faisalabad, Pakistan aut Zia Khalid Institute of Chemistry, Government College University, 38030, Faisalabad, Pakistan aut Jamil Tahir Department of Polymer Engineering and Technology, University of the Punjab, Lahore, Pakistan aut Hussain Rizwan National Engineering and Scientific Commission (NESCOM), P. O. Box 2216, Islamabad, Pakistan aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/12(2013-12-01), 2259-2263 0256-1115 30:12<2259 2013 30 11814 https://doi.org/10.1007/s11814-013-0166-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0166-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mumtaz Fatima Institute of Chemistry, Government College University, 38030, Faisalabad, Pakistan aut NATIONALLICENCE 700 1- Zuber Mohammad Institute of Chemistry, Government College University, 38030, Faisalabad, Pakistan aut NATIONALLICENCE 700 1- Zia Khalid Institute of Chemistry, Government College University, 38030, Faisalabad, Pakistan aut NATIONALLICENCE 700 1- Jamil Tahir Department of Polymer Engineering and Technology, University of the Punjab, Lahore, Pakistan aut NATIONALLICENCE 700 1- Hussain Rizwan National Engineering and Scientific Commission (NESCOM), P. O. Box 2216, Islamabad, Pakistan aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/12(2013-12-01), 2259-2263 0256-1115 30:12<2259 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer