Please use this identifier to cite or link to this item:
|Title:||Surface passivation of nylon-6,6 films by graft copolymerization for reduction of moisture sorption||Authors:||Zhang, J.
|Issue Date:||Nov-2000||Citation:||Zhang, J.,Khong, K.T.,Kang, E.T. (2000-11). Surface passivation of nylon-6,6 films by graft copolymerization for reduction of moisture sorption. Journal of Applied Polymer Science 78 (7) : 1366-1373. ScholarBank@NUS Repository. https://doi.org/10.1002/1097-4628(20001114)78:7<1366||Abstract:||To improve the moisture sorption property of nylon-6,6 film, ally pentafluorobenzene (APFB) was incorporated on the argon plasma-pretreated nylon film by UV or thermally induced surface graft copolymerization. The plasma pretreatment introduce peroxides that were degraded into radicals to initiate the graft copolymerization of APFB on the nylon surface. The modified surfaces were characterized by X-ray photoelectron spectroscopy (XPS) and contact angle measurement. The moisture sorption was assessed by the coulometric test method. The efficiency of surface graft copolymerization was affected by plasma pretreatment time of the nylon substrate, as well as by the UV or thermal graft copolymerization time. The UV graft-copolymerized nylon film exhibited a significantly lower extent of moisture sorption when compared to that of the pristine films, even at low graft concentration. However, the moisture sorption behavior for the thermally graft copolymerized films was similar to that of the pristine films. Contact angle and XPS measurements suggested that the reduction in moisture sorption for the UV graft-copolymerized nylon-6,6 film was attributable to the fact that the hydrophobic polymer layer was formed on the nylon surface, and the hydrophobic layer of an appropriate thickness could serve as an effective barrier to moisture.||Source Title:||Journal of Applied Polymer Science||URI:||http://scholarbank.nus.edu.sg/handle/10635/66846||ISSN:||00218995||DOI:||10.1002/1097-4628(20001114)78:7<1366|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 21, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.