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北京石油化工学院2026年研究生招生接收调剂公告
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wargod2008

金虫 (小有名气)


xiaoxi8938(金币+2):谢谢参与
做光引发聚合是需要光引发剂的。我做过的!做过N-异丙基丙烯酰胺的聚合!很简单,光引发剂、单体、溶剂、交联剂已经特定波长的光源就可以了。下面是我发的一篇文章上的具体做法(光引发剂是2,2′-dimethoxy-2-phenylacetophe-none(DMPAP)):
Preparation of Hydrogels. The polymerization of the novel PNIPAAm hydrogel wasi nitiated by thephotoinitiator (DMPAP). Particular amounts of NIPAAm, P(NIPAAm-co-UA)-NHCOCHdCH2, and the crosslinker, BIS, were dissolved in mixed solvent (distilledwater/NMP) to obtain a clear solution.The feed compostions of the monomers and othe rreactants are listed in Table1. The monomer solution was irradiated by a portable long-wavelength UV lamp (356nm,16W)at room temperature (22°C)for 24h. The resulted PNIPAAm hydrogel was taken out and immersed indistilled water to leach out the unreacted chemicals for 3 days. During this period, the distilled water was replaced with fresh water every 4h.The hydrogels prepared were labeled as Gelx,where x means the amount of the macromonomer P(NIPAAm-co-UA)-NHCOCHdCH2. Herein, the conventional PNIPAAm hydrogel was used as a control and designated as CGel, which was fabricated under thesame condition without the macromonomer. The hydrogels were cut into disks with a 10mm diameter and a 8mm thickness for the following characterizations.

具体的文章:Xu  XD, Zhang XZ et al. Strategy to Introduce a Pendent Micellar Structure intoPoly(N-isopropylacrylamide) Hydrogels. Langmuir 2007, 23, 4231-4236.

祝楼主成功啊!
11楼2009-06-18 10:59:51
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bxzh1030

铜虫 (小有名气)


xiaoxi8938(金币+2):谢谢参与
看了一下,如果理解不错的话:
TEMED是一种增速剂, 本身不会起引发作用!所以,你还需加光引发剂, 一般说来, TEMED是和过铵等一起使用的.
亚甲基兰应该是为了要颜色而已吧?
丙三醇加进去主要是保水作用,所以我想你的体系应该是水性体系吧!
12楼2009-06-23 14:03:55
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zhengtihe102

金虫 (小有名气)

湘鄂逸士


小木虫(金币+0.5):给个红包,谢谢回帖交流
丙烯酸很容易聚合的啊,控制好引发剂和交联剂的用量。
不以物喜,不以己悲
13楼2009-07-21 10:06:32
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