Inorganic -Polyimide Hybrid Membranes by Sequential Molecular Grafting

Inorganic -Polyimide Hybrid Membranes by Sequential Molecular Grafting

Available online at www.sciencedirect.com Procedia Engineering 44 (2012) 642 – 643 (XURPHPEUDQH&RQIHUHQFH >2'@ ,QRUJDQLFSRO\LPLGHK\EUL...

164KB Sizes 0 Downloads 40 Views

Available online at www.sciencedirect.com

Procedia Engineering 44 (2012) 642 – 643

(XURPHPEUDQH&RQIHUHQFH >2'@ ,QRUJDQLFSRO\LPLGHK\EULGPHPEUDQHVE\VHTXHQWLDOPROHFXODUJUDIWLQJ 9*36ULSDWKL $1LMPHLMHU1(%HQHV 8QLYHUVLW\RI7ZHQWH7KH1HWKHUODQGV  ,QRUJDQLF ±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Ȗ$O2 PHPEUDQHV7KHVHOHFWHGSUHFXUVRUVDUHKH[DIOXRURLVRSURS\OLGHQHGLSKWKDOLFDQK\GULGH )'$  DQGKH[DIOXRURLVRSURS\OLGHQHGLDQLOLQH )S'$   6XUIDFH FKHPLVWU\ DQG PRUSKRORJ\ RI WKH K\EULG PDWHULDOV ZHUH FKDUDFWHUL]HG ZLWK )RXULHU WUDQVIRUPLQIUDUHGVSHFWURVFRS\DQGQLWURJHQSK\VLVRUSWLRQ7KHGDWDFRQILUPFRYDOHQWERQGLQJ RI WKH RUJDQLF PROHFXOHV WR WKH PHWDO R[LGH VXUIDFH 8SRQ HDFK VHTXHQWLDO JUDIWLQJ VWHS WKH VXUIDFH DUHD SRUH YROXPH DQG DYHUDJH SRUH GLDPHWHU GHFUHDVH $IWHU VHYHUDO JUDIWLQJ VWHSV QLWURJHQVRUSWLRQLVRWKHUPVLQGLFDWHDQLQFUHDVHGDPRXQWRIPLFURSRUHVDQGDUHGXFHGDPRXQW RI PHVRSRUHV &RQFXUUHQWO\ WKH SHUPHDQFH RI 1 DQG &+ GHFUHDVHG 7KHVH REVHUYDWLRQV VXJJHVWILOOLQJRISRUHVZLWKRUJDQLFIXQFWLRQDOJURXSV,QFRQWUDVWWR1DQG&+WKHSHUPHDQFH RI &2 JUDGXDOO\ LQFUHDVHV ZLWK WKH QXPEHU RI VHTXHQWLDO JUDIWLQJ VWHSV GXH WR WKH UDLVHG FRQFHQWUDWLRQ RI RUJDQLF JURXSV ZLWK KLJK &2 DIILQLW\ 2SWLPL]DWLRQ RI WKH VHTXHQWLDO JUDIWLQJ SURFHVVLVUHTXLUHGWRIXUWKHULPSURYH&2VHOHFWLYLW\ZKLOHDYRLGLQJWKHHIIHFWVRISODVWLFL]DWLRQ DQG VZHOOLQJ 7KH UHVXOWLQJ PHPEUDQHV FRXOG GLVSOD\ KLJK SHUIRUPDQFH DW HOHYDWHG SUHVVXUH DQGWHPSHUDWXUHZKHUHQRQFRQILQHGSRO\PHUVW\SLFDOO\VXIIHUIURPVZHOOLQJ  DQGSODVWLFL]DWLRQ 

1877-7058 © 2012 Published by Elsevier Ltd. doi:10.1016/j.proeng.2012.08.515

V.G.P. Sripathi et al. / Procedia Engineering 44 (2012) 642 – 643

 )LJXUH  6LQJOHJDV GHDGHQG SHUPHDQFH IRU VHTXHQWLDO PROHFXODU JUDIWLQJ VWHSV RI D PHVRSRURXVȖDOXPLQDPHPEUDQH .H\ZRUGV*DVVHSHUDWLRQJDOXPLQDSRURXVPHPEUDQHV3RO\LPLGHPHPEUDQHV*UDIWLQJ  

643