单分散纳米聚苯乙烯制备及表征_吕春玲.pdfVIP

2010 31 6 ( ) V ol. 3 1No . 62010 ( 134 ) JOURNAL OF NORTH UNIVERSITY OF CHINA( NATURAL SCIENCEEDITION) ( Sum No . 134) : 1673-3193( 2010) 06-0604-04 吕春玲, 张景林 ( , 03005 1) : -. : P S , , P S . PS . , PS PS , PS . 2080 ( ) , P S nm P S . : ; ; PS ; ; ; : 631: : 10. 3969/ . . 1673-3193. 20 10. 06. 013 O A doi j i n Preparation and Characterization of onodisperseNanometerPolystyrene LChun-ling, ZHANG Jing -lin ( School of Chemical Eng ineering and Env ir onment, North Univ er ity of China , T aiyuan 030051, China) Abstract: M embrane di per ion- olvent extractio n method w a u ed to prepare monodi per e poly ty rene ( PS) nanom eter phere . It w a found that m em brane pore ize w a a critical factor for ize co ntrolling . T he ize of PS micr o phere increa ed w ith the enlar gement of m em br ane pore ize. The multiplier betw een the ize of PS micro phere and m em br ane pore depended on the eng age angle of di per e pha e drop and continuou pha e. M oreover, ize of PS micr o phere increa ed w ith the increment of PS olution co ncentratio n w hen m em brane pore ize w a elected. A ty pe of monodi per e poly ty rene nanom eter phere about 2080 nm w a prepar ed. Atom force m icro copy , tran mi ion electron m icro copy and infrared pectrum analy i w ere applied to characterize the PS nanometer phere . : ; ; ; ; Key wo