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The molecular weight as disclosed by the supplier ranged from 250 to 500 kg/g mol. The molecular weight of PEI were 70 kg/g mol. ÉÏÃæÁ½ÖÖ¾ÛºÏÎïµÄ·Ö×ÓÁ¿µ¥Î»ÈçºÎ»»Ëã³É³£¹æµ¥Î»ÄØ£¿ |
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