以甲基丙烯酸甲酯(MMA)和丙烯酸(AA)为单体,偶氮二异丁腈(AIBN)为引发荆,采用自由基共聚合成了两亲性无规共聚物MMA-co-AA,并将其与聚偏二氟乙烯(PVDF)共混,通过浸没沉淀相转换法制备了PVDF共混膜.利用X射线衍射(XRD)、差示扫描量热法(DSC)、扫描电子显微镜(SEM)以及水接触角等对共混膜的性能与微观结构进行了研究.结果表明,N,N-二甲基甲酰胺(DMF)溶剂以及两亲性共聚物MMA-co-AA有利于提高PVDF的结晶度,能促进β-PVDF晶型的形成.同时,MMA-co-AA能引发PVDF共混膜表面出现微孔,随着两亲性共聚物含量的不断增加,共混膜的接触角逐渐减小,表面亲水性得到改善.
参考文献
| [1] | 苗小郁,李建生,王连军,孙秀云.聚偏氟乙烯膜的亲水化改性研究进展[J].材料导报,2006(03):56-59. |
| [2] | Hester J.F.;Mayes A.M.;Banerjee P. .Preparation of protein-resistant surfaces on poly(vinylidene fluoride) membranes via surface segregation[J].Macromolecules,1999(5):1643-1650. |
| [3] | S. Rajendran;R. Kannan;O. Mabendran .An electrochemical investigation on PMMA/PVdF blend-based polymer electrolytes[J].Materials Letters,2001(3/4):172-179. |
| [4] | Gregorio R .Determination of the alpha, beta, and gamma crystalline phases of poly(vinylidene fluoride) films prepared at different conditions[J].Journal of Applied Polymer Science,2006(4):3272-3279. |
| [5] | Gregorio R.;Nociti NCPD. .EFFECT OF PMMA ADDITION ON THE SOLUTION CRYSTALLIZATION OF THE ALPHA AND BETA PHASES OF POLY(VINYLIDENE FLUORIDE) (PVDF)[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,1995(2):432-436. |
| [6] | Zhao YH;Zhu BK;Kong L;Xu YY .Improving hydrophilicity and protein resistance of poly(vinylidene fluoride) membranes by blending with amphiphilic hyperbranched-star polymer[J].Langmuir: The ACS Journal of Surfaces and Colloids,2007(10):5779-5786. |
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%