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| 二茂铁端基修饰的聚酰胺胺树形分子的热稳定性研究 | |
| 引用本文： | 王尔新,肖凤娟,张立业,施民梅,尹常晓.二茂铁端基修饰的聚酰胺胺树形分子的热稳定性研究[J].河北科技大学学报,2011,32(1):64-68,97. |
| 作者姓名： | 王尔新 肖凤娟 张立业 施民梅 尹常晓 |
| 作者单位： | 1. 承德石油高等专科学校热工系,河北承德,067000 2. 石家庄铁道大学材料科学与工程学院,河北石家庄,050043 3. 承德市环境科学研究院,河北承德,067000 4. 沧州高等师范专科学校化学与环境科学系,河北沧州,061001 |
| 摘 要： | 以第2代聚酰胺胺(G2-PAMAM)树形分子为基体,通过二茂铁甲醛与G2-PAMAM端氨基之间的还原氨化反应,完成了对G2-PAMAM的二茂铁端基修饰,合成了末端含二茂铁基团的聚酰胺胺树形分子(G2-PAMAM-Fc).用热重分析(TG-DTG)、差示扫描量热分析(DSC)研究了2种物质的玻璃化转化温度(Tg)和热行为... |
| 关 键 词： | 聚酰胺胺 树形分子 二茂铁 热稳定性 接枝率 |
| 收稿时间： | 2010/10/15 0:00:00 |
| 修稿时间： | 2010/11/5 0:00:00 |
Study on thermal stability of polyamidoamine dendrimer modefied by ferrocene |
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| WANG Er-xin,XIAO Feng-juan,ZHANG Li-ye,SHI Min-mei and YIN Chang-xiao.Study on thermal stability of polyamidoamine dendrimer modefied by ferrocene[J].Journal of Hebei University of Science and Technology,2011,32(1):64-68,97. | |
| Authors: | WANG Er-xin XIAO Feng-juan ZHANG Li-ye SHI Min-mei and YIN Chang-xiao |
| Institution: | 1.Department of Thermal Engineering,Chengde Petroleum College,Chengde Hebei 067000,China;2.School of Material Science and Engineering,Shijiazhuang Railway Institute,Shijiazhuang Hebei 050043,China;3.Chengde City Research Academy of Environmental Science,Chengde Hebei 067000,China;4.Department of Chemical and Environmental Science,Cangzhou Teacher＇s College,Cangzhou Hebei 061001,China) |
| Abstract: | The second generation of ferrocenyl-terminated polyamidoamine dendrimer（G2-PAMAM-Fc） has been successfully obtained by a reductive ammonification reaction between ferrocene formaldehyde and the third generation of hyperbranched polyamidoamine（G2-PAMAM）.The thermal properties and the glass transition temperature have been investigated by thermal gravimetry（TG）-derivative thermal gravimetry（DTG）,differential scanning calorimetry（DSC） techniques.The maximum graft degree of ferrocene on PAMAM is 78% according to UV/visible spectra determined spectrophotometrically at 438 nm.The glass transition temperature of G2 PAMAM-Fc is higher than that of G2 PAMAM.PAMAM-Fc is more thermally stable than G2-PAMAM.The incorporation of ferrocene into dendrimer could efficiently improve its thermal stability.The probable mechanism of thermal stability is discussed. |
| Keywords: | PAMAM dendrimer ferrocene thermal stability graft degree |
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