以N,N-二甲基丙烯酰胺(DMA)为单体,N,N-胱胺二丙烯酰胺(CBA)为交联剂,在氧化石墨烯(GO)水分散液中进行自由基原位聚合,制备了高强度PDMA/GO复合水凝胶,研究了GO和交联剂CBA的含量对复合水凝胶性能的影响.结果表明,复合水凝肢的热稳定性、拉伸强度和压缩强度随GO和CBA含量的增加而增加,其平衡溶胀比随GO含量的增加而减小.利用CBA的二硫键可以还原断裂的性质,通过热重分析测定了PDMA在GO表面的接枝效率.结果表明,GO不是简单共混在水凝胶中,而是起到了交联剂的作用,使得复合水凝胶具有优良的拉伸强度和压缩强度.
参考文献
| [1] | Xiaoming Yang;Yingfeng Tu;Liang Li .Well-Dispersed Chitosan/Graphene Oxide Nanocomposites[J].ACS applied materials & interfaces,2010(6):1707-1713. |
| [2] | 秦绪平,赵芳,冯圣玉.高力学强度水凝胶的研究进展[J].高分子材料科学与工程,2012(03):174-178. |
| [3] | Yang, W;Pan, CY .Synthesis and Fluorescent Properties of Biodegradable Hyperbranched Poly(amido amine)s[J].Macromolecular rapid communications,2009(24):2096-2101. |
| [4] | 向康,刘春华,王平华,唐龙祥,王志刚.石墨烯纳米复合材料的制备及结构表征[J].高分子材料科学与工程,2011(10):42-45. |
| [5] | Bourlinos AB.;Gournis D.;Petridis D.;Szabo T.;Szeri A.;Dekany I. .Graphite oxide: Chemical reduction to graphite and surface modification with primary aliphatic amines and amino acids[J].Langmuir: The ACS Journal of Surfaces and Colloids,2003(15):6050-6055. |
| [6] | 王亚茹,戴玉芳,龚静华,马敬红.PDMAA/Clay纳米复合水凝胶的制备与性能[J].东华大学学报（自然科学版）,2011(06):671-676. |
| [7] | Ming Fang;Kaigang Wang;Hongbin Lu .Single-layer graphene nanosheets with controlled grafting of polymer chains[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2010(10):1982-1992. |
| [8] | Haraguchi K.;Takehisa T.;Fan S. .Effects of clay content on the properties of nanocomposite hydrogels composed of poly(N-isopropylacrylamide) and clay[J].Macromolecules,2002(27):10162-10171. |
| [9] | Kan, L.;Xu, Z.;Gao, C. .General avenue to individually dispersed graphene oxide-based two-dimensional molecular brushes by free radical polymerization[J].Macromolecules,2011(3):444-452. |
| [10] | Jianfeng Shen;Bo Yan;Tie Li .Study on graphene-oxide-based polyacrylamide composite hydrogels[J].Composites. Part A, Applied science and manufacturing,2012(9):1476-1481. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%