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haoxuan(½ð±Ò+3,VIP+0):лл 9-9 21:06
haoxuan(½ð±Ò+3,VIP+0):лл 9-9 21:06
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¶à¿×µÄÍø×´½á¹¹ porous network structure ¿×¶´±»¶ÂÈû the holes were obliterated (by ...) ¿×¶´±ä´ó pole size increased after the dissolution of ľ·Û ½á¹¹±äµÄËÉÉ¢ structure became looser ÊèËɶà¿×½á¹¹ loose porous structure |
2Â¥2009-09-08 12:14:55
jw227
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haoxuan(½ð±Ò+5,VIP+0):·Ç³£¸ÐлÄú 9-9 21:07
haoxuan(½ð±Ò+5,VIP+0):·Ç³£¸ÐлÄú 9-9 21:07
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It shows in Photo A , powder of the native wood without dissolving is a porous network structure, and the majority of holes have been blocked. Photo B is wood residue dissolved by the ionic liquid. As we have seen from the photo B, the holes of wood flour became bigger after dissolved and the structure was loosened. The surface area in the reaction is much greater than native wood powder. Therefore, wood powder residue should be easier to perform the reaction of graft copolymerization. Photo C is the wood powder with the graft copolymer, different morphology with A and B. From C, we can see that porous structure of wood powder and the graft copolymer is disappeared, which further illustrates the wood powder and the graft copolymerization took place. [ Last edited by jw227 on 2009-9-9 at 21:12 ] |

3Â¥2009-09-08 16:13:31
4Â¥2009-09-09 21:07:41














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