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ÔÎÄ£º ps-b-paa was obtained from Rohm & Hass Electronic Materials(shanghai branch)the block ratio of ps to paa is 2:1,molecular weight is 12500 g/mol. ûÓÐÂÞÃŹþ˹µÄ»¯Ñ§Êֲᣬ²éÂÞÃŹþ˹µÄÍøÕ¾ www.rohmhaas.com ²é²»µ½£¨²»»á²é£©£¬´òµç»°Ð¡½ãÎÊÎÒÐͺţ¬ÎÒÖªµÀ»¹ÒªÎÊËý£¿ÄÇλ´ó¸ç´ó½Ö°ïæ²é²é£¬Ð»Ð»£¡ [ Last edited by wellok101 on 2008-3-11 at 19:59 ] |
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2Â¥2008-03-15 22:48:41
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