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luckydogzhang至尊木虫 (著名写手)
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求助聚N异丙基丙烯酰胺（PNIPAAm）的玻璃化转变温度
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| 如题，如果能提供可以查找聚合物的玻璃化转变温度的网站更好，谢谢！ |
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luckydogzhang(金币+6,VIP+0):好久不见啊 7-13 08:17
luckydogzhang(金币+6,VIP+0):好久不见啊 7-13 08:17
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Poly(N-isopropylacrylamide) (variously abbreviated PNIPA, PNIPAAm, PNIPAA or PNIPAm) is a temperature-responsive polymer that was first synthesized in the 1950s.[1] It forms a three-dimensional hydrogel when crosslinked with N,N’-methylene-bis-acrylamide (MBAm) or N,N’-cystamine-bis-acrylamide (CBAm). When heated in water above 33°C, it undergoes a reversible phase transition from a swollen hydrated state to a shrunken dehydrated state, losing about 90% of its mass. Since PNIPAm expels its liquid contents at a temperature near that of the human body, PNIPAm has been investigated by many researchers for possible applications in controlled drug delivery.[2][3] 呵呵，英文不是很好，是不是说明玻璃化转变温度为33℃啊？从维基百科上找到的，不知道对不对哦^_^ https://en.wikipedia.org/wiki/Poly(N-isopropylacrylamide)  |
8楼2009-07-12 14:49:27