采用可见分光光度计、变温核磁共振氢谱、流变仪等,从浊点和黏度变化方面研究了2-甲基-2-丙烯酰胺基丙磺酸钠(NaAM PS)/N-乙烯基己内酰胺(VCL)/二乙烯苯(DVB)聚合物PAVD在水溶液中的温敏缔合作用,揭示了PAVD分子结构对其温敏缔合作用的影响规律.可见分光光度计和变温核磁共振氢谱对PAVD水溶液相变过程的跟踪研究表明,聚合物分子中VCL含量越高,浊点越低,且变温核磁共振氢谱测试表明,PAVD分子VCL侧链上亚甲基链段会随着温度的升高而变为疏水性,进而产生疏水缔合作用;流变测试表明,只有当聚合物分子中VCL含量处于一定范围内时,其溶液会出现明显的温敏增稠现象,且VCL含量越高,临界增稠温度越低,温敏增稠现象越显著.最后基于临界增稠温度和浊点的对比分析,对聚合物水溶液的温敏缔合过程进行探讨.
参考文献
| [1] | Hourdet D.;Audebert R.;Lalloret F. .SYNTHESIS OF THERMOASSOCIATIVE COPOLYMERS[J].Polymer: The International Journal for the Science and Technology of Polymers,1997(10):2535-2547. |
| [2] | Wang, Y;Feng, YJ;Wang, BQ;Lu, ZY .A Novel Thermoviscosifying Water-Soluble Polymer: Synthesis and Aqueous Solution Properties[J].Journal of Applied Polymer Science,2010(6):3516-3524. |
| [3] | Quansheng Chen;Yu Wang;Zhiyong Lu .Thermoviscosifying polymer used for enhanced oil recovery: rheological behaviors and core flooding test[J].Polymer bulletin,2013(2):391-401. |
| [4] | 谢彬强,邱正松,沈忠厚,张洪霞,曹杰,黄维安.温敏缔合共聚物P（NaAMPS-VCL-DVB）的合成及溶液特性[J].高分子材料科学与工程,2012(09):17-19,23. |
| [5] | Nadejda I Shtanko;Wouter Lequieu;Eric J Goethals;Filip E Du Prez .pH- and thermo-responsive properties of poly(N-vinylcaprolactam-co-acrylic acid) copolymers[J].Polymer international,2003(10):1605-1610. |
| [6] | Makhaeva EE.;Tenhu H.;Khokhlov AR. .Behavior of poly(N-vinylcaprolactam-co-methacrylic acid) macromolecules in aqueous solution: Interplay between Coulombic and hydrophobic interaction[J].Macromolecules,2002(5):1870-1876. |
| [7] | Laurence Petit;Carole Karakasyan;Nadege Pantoustier .Synthesis of graft polyacrylamide with responsive self-assembling properties in aqueous media[J].Polymer: The International Journal for the Science and Technology of Polymers,2007(24):7098-7112. |
| [8] | Lozinsky VI.;Simenel IA.;Kulakova VK.;Kurskaya EA.;Babushkina TA. Klimova TP.;Burova TV.;Dubovik AS.;Grinberg VY.;Galaev IY.;Mattiasson B.;Khokhlov AR. .Synthesis and studies of N-vinylcaprolactam/N-vinylimidazole copolymers that exhibit the "proteinlike" behavior in aqueous media[J].Macromolecules,2003(19):7308-7323. |
| [9] | Tizzotti, M.;Creuzet, C.;Labeau, M.-P.;Hamaide, T.;Boisson, F.;Drockenmuller, E.;Charlot, A.;Fleury, E. .Synthesis of temperature responsive biohybrid guar-based grafted copolymers by click chemistry[J].Macromolecules,2010(16):6843-6852. |
| [10] | 白荣光,郭睿威,蔡超.HPAM-g-P（NIPA-co-DMAM）的合成与温敏行为[J].化工学报,2007(09):2388-2394. |
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%