Combined main-chain/side-chain ionic liquid crystalline polymer based on 'jacketing' effect: Design, synthesis, supra-molecular self-assembly and photophysical properties
Combined main-chain/side-chain ionic liquid crystalline polymer based on 'jacketing' effect: Design, synthesis, supra-molecular self-assembly and photophysical properties
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基于“夹套”效应的组合主链/侧链离子液晶聚合物：设计、合成、超分子自组装和光物理性质
DOI：
10.3144/expresspolymlett.2015.51
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发表时间：
2015
影响因子：
3.3
通讯作者：
Chen E. Q.
中科院分区：
文献类型：
--
作者：
Weng L.;Xie H. L.;Arges C. G.;Tang J.;Zhong G. Q.;Zhang H. L.;Chen E. Q.
合理制备离子聚合物的有序结构对于新型功能材料的开发非常重要。通过将离子与液晶聚合物结合，我们成功设计并合成了一系列含有咪唑基团和不同抗衡阴离子的新型组合主链/侧链离子液晶聚合物（MCSC-ILCPs），聚（2,5-双{（6-（4-丁氧基-4！-咪唑鎓联苯）己基）氧羰基}苯乙烯盐）聚（BImBHCS-X）与以下类型的抗衡阴离子（Br"、BF4"、PF6" 和 TFSI"）。组合技术证实了具有咪唑鎓阳离子和不同抗衡阴离子的单体和聚合物的化学结构。差示扫描量热法（DSC）、偏光显微镜（PLM）以及一维和二维广角X射线衍射（1D和2D WAXD）结果表明，液晶结构和有序结构的转变取决于所用反阴离子的性质。具有 Br" 和 BF4" 抗衡阴离子的聚合物在低于各向同性温度时表现出近晶 A (SmA) LC 行为。另一种是具有大体积“TFSI”阴离子的聚(BImBHCS-TFSI)，它破坏了液晶有序结构的堆积，导致无定形结构。所制备的聚合物的光物理性质可以通过切换反阴离子来调节聚合物的离子相互作用来调节。
Reasonably fabricating ordered structures of ionic polymers is very important for the development of novel func- tional materials. By combining the ions and liquid cry stalline polymer, we successfully designed and synthesized a series of novel combined main-chain/side-chain ionic liquid crystalline polymer (MCSC-ILCPs) containing imidazolium groups and different counter-anions, poly (2,5-bis{(6-(4-butoxy-4!-imidazolium biphenyl)hexyl)oxycarbonyl}styrene salts) poly(BImBHCS-X) with the following types of counter-anions (Br", BF4", PF6" and TFSI"). Combined technologies con- firmed the chemical structures of the monomers and polymers with imidazolium cation and different counter-anions. Dif- ferential scanning calorimetry (DSC), polarized light microscopy (PLM) and one- and two-dimensional wide-angle X-ray diffraction (1D and 2D WAXD) results illustrated that the LC structures and the transitions of ordered structures depended on the nature of the counter-anion employed. The polymers with Br" and BF4" counter-anions exhibited smectic A (SmA) LC behavior below the isotropic temperature. The another one, poly(BImBHCS-TFSI) with the large volume of the TFSI" anion destroyed the packing of the LC ordered structure resulting in an amorphous structure. The photophysical properties of the polymers prepared can be adjusted by tuning the ionic interaction of the polymers by switching the counter-anion.
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DOI：
10.1002/chin.199303291
发表时间：
1993-01
期刊：
ChemInform
影响因子：
--
作者：
C. Bazuin;F. Brandys
通讯作者：
C. Bazuin;F. Brandys
影响因子：
2.5
作者：
H. Finkelmann;H. Ringsdorf;J. Wendorff
通讯作者：
H. Finkelmann;H. Ringsdorf;J. Wendorff
影响因子：
5.5
作者：
Bhowmik, PK;Burchett, RA;Cebe, JJ
通讯作者：
Cebe, JJ
影响因子：
5.5
作者：
Bhowmik, PK;Molla, AH;Bose, RN
通讯作者：
Bose, RN
影响因子：
5.5
作者：
Y. Xue;M. Hara
通讯作者：
Y. Xue;M. Hara