ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
This study was compare of physics and chemical property of Styrene-butadiene-styrene (SBS)/Acrylic acid (AA) copolymer after thermal polymerization and UV graft-polymerization. The resultof this study shows: when the thermal polymerization was used, the grafting percentage of SBS-g-AArose along with the increase of the AA monomer concentration. The maximum occurred whenSBS=0.5g and AA=2.5 x 0.0065mol, then it decreased along with the increase of the AAconcentration. The transition ratio and grafting percentage decreased as the concentration of SBSincreased; while AA was fixed on 0.0065mol, the maximum grafting percentage occurred by using 1gSBS. The grafting percentage increase along with the increase of reacting time, and it reached themaximum after reacting 3 hours. The water contact angle was lowered from 82o to 58o. Using the UVgraft-polymerization, when AA monomer concentration increased, the grafting percentage increasedas well; the maximum occurred when AA concentration was 2.88M. Moreover, the graftingpercentage was increasing along with the increase of reacting time, but it stopped increasing around40 minutes reacting time. The grafting percentage of thermal polymerization was higher than UVgraft-polymerization. It shows that the swelling ratio of membranes grafted using the UV light washigher than those grafted by thermal polymerization
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.1288.pdf
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