Novel application of a classical side-chain liquid crystalline polymer as a gelator for common solvents
Novel application of a classical side-chain liquid crystalline polymer as a gelator for common solvents
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经典侧链液晶聚合物作为普通溶剂胶凝剂的新应用
DOI：
10.1016/j.polymer.2017.09.060
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发表时间：
2017-12
期刊：
影响因子：
4.6
通讯作者：
张海良
中科院分区：
文献类型：
--
作者：
陈磊;袁勇杰;钟冠群;黎金娣;张海良
合成了一种经典的侧链液晶聚合物聚[ω-(4‘-正十八氧基联苯基-4-氧基)甲基丙烯酸己酯(PM6BiC18)]。将PM6BiC18或M6BiC18引入到普通有机溶剂中，制备了聚合物及其单体(M6BiC18)有机凝胶。用试管法测定了凝胶的最低凝胶化浓度(MGC)和凝胶-溶胶转变温度(TGS)。在相同的有机溶剂中，PM6BiC18形成的凝胶的玻璃化温度高于M6BiC18形成的凝胶。用扫描电子显微镜和偏光显微镜对凝胶的微观形态进行了研究。实验结果表明，M6BiC18凝胶是由纤维结晶形成的。然而，聚合物凝胶是由均匀的球形自组装结构形成的。进一步的UV-Vis光谱研究表明，联苯基元的π-π堆积相互作用可能是指导自组装过程和聚合物凝胶形成的关键因素。
A classical side-chain liquid crystalline polymer (SCLCP) named poly [ω-(4′-n-octadecyloxybiphenyl-4-oxy) hexyl methacrylate (PM6BiC18) have been synthesized. The polymer and its monomer (M6BiC18) organogels were prepared by introducing PM6BiC18 or M6BiC18 into common organic solvents. The minimum gelation concentration (MGC) and gel-to-sol transition temperature (TGS) were tested by the “tube-testing method”. In the same organic solvent, it was found that the TGSof gels based on PM6BiC18 was higher than the gels formed by M6BiC18. The microscopic morphology of the gels was carefully investigated by SEM and polarizing microscope. Experimental results revealed that the M6BiC18 gels are formed by the crystallization of fibers. However, the polymer gels are formed by uniform spherical self-assembly structures. Further studies discussed by UV–vis spectroscopy, the results implied that the π–π stacking interaction of the biphenyl mesogens might be the key factor for guiding the self-assembly processes and the polymer gel formation.
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影响因子：
15
作者：
An, BK;Lee, DS;Park, SY
通讯作者：
Park, SY
DOI：
10.1021/la401521m
发表时间：
2013-06
期刊：
Langmuir : the ACS journal of surfaces and colloids
影响因子：
--
作者：
E. Dahan;P. Sundararajan
通讯作者：
E. Dahan;P. Sundararajan
影响因子：
2.4
作者：
A. Bobrovsky;V. Shibaev;V. Hamplová;M. Kaspar;M. Glogarová
通讯作者：
A. Bobrovsky;V. Shibaev;V. Hamplová;M. Kaspar;M. Glogarová
影响因子：
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作者：
Dang Wu;Bin Ni;Yujie Liu;Sheng Chen;Hailiang Zhang
通讯作者：
Dang Wu;Bin Ni;Yujie Liu;Sheng Chen;Hailiang Zhang
影响因子：
15
作者：
Raymond J. Thibault;Peter J. Hotchkiss;M. Gray;V. Rotello
通讯作者：
Raymond J. Thibault;Peter J. Hotchkiss;M. Gray;V. Rotello