Branched amphiphilic polysulfides: influence of macromolecular architecture on self-assembly and oxidation responsivenes

  • PDF / 255,794 Bytes
  • 9 Pages / 432 x 648 pts Page_size
  • 27 Downloads / 152 Views

DOWNLOAD

REPORT


%UDQFKHGDPSKLSKLOLFSRO\VXOILGHVLQIOXHQFHRIPDFURPROHFXODUDUFKLWHFWXUHRQVHOI DVVHPEO\DQGR[LGDWLRQUHVSRQVLYHQHVV  5LFKDUGG¶$UF\1LFROD7LUHOOL  

&HQWUHIRU7LVVXH,QMXU\ 5HSDLU,QVWLWXWHRI,QIODPPDWLRQDQG5HSDLU8QLYHUVLW\RI0DQFKHVWHU2[IRUG5RDG 0DQFKHVWHU0378QLWHG.LQJGRP 1RUWK:HVW&HQWUHIRU$GYDQFHG'UXJ'HOLYHU\0DQFKHVWHU3KDUPDF\6FKRRO8QLYHUVLW\RI0DQFKHVWHU2[IRUG 5RDG0DQFKHVWHU0378QLWHG.LQJGRP 

WRZKRPFRUUHVSRQGHQFHVKRXOGEHDGGUHVVHGQLFRODWLUHOOL#PDQFKHVWHUDFXN 

  $%675$&7 DQGDUPVWDUDPSKLSKLOLFEORFNFRSRO\PHUVZHUHSUHSDUHGZLWKWKHEUDQFKLQJ SRLQWORFDWHGLQWKHK\GURSKRELFFRUHFRPSRVHGRISRO\ SURS\OHQHVXOILGH  336 SRO\ HWK\OHQH JO\FRO  3(*  SHQGDQW FKDLQV FRPSOHWHG WKH PDFURPROHFXODU VWUXFWXUH 7KH OHYHO RI EUDQFKLQJ LQIOXHQFHG WKH ULJLGLW\ RI WKH 336 FRUH DQG RI WKH RYHUDOO PDFURPROHFXOH ZLWK WKH 0DUN +RXZLQNSDUDPHWHUa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in vivo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