Dispersion characteristics and rheology of organoclay nanocomposites based on a segmented main-chain liquid-crystalline polymer having side-chain azopyridine with flexible spacer

Polymer ◽  
2006 ◽  
Vol 47 (12) ◽  
pp. 4400-4410 ◽  
Author(s):  
Wenyi Huang ◽  
Chang Dae Han
Keyword(s):  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Crystalline Polymer ◽  
Side Chain ◽  
Dispersion Characteristics ◽  
Flexible Spacer

Hierarchical Structures in a Main-Chain/Side-Chain Combined Liquid Crystalline Polymer with a Polynorbornene Backbone and Multi-Benzene Side-Chain Mesogens

2016 ◽  
Vol 49 (19) ◽  
pp. 7238-7245 ◽  
Author(s):  
Ping-Ping Hou ◽  
Zhen-Yu Zhang ◽  
Qian Wang ◽  
Meng-Yao Zhang ◽  
Zhihao Shen ◽  
...  
Keyword(s):  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Hierarchical Structures ◽  
Crystalline Polymer ◽  
Side Chain

Main-chain/side-chain liquid crystalline polymer based on “jacketing” effect with different-length tails: Phase structures and spontaneous oriented behavior in film

Polymer ◽  
2018 ◽  
Vol 143 ◽  
pp. 137-144 ◽  
Author(s):  
Jun Tang ◽  
Lei Tao ◽  
He-Lou Xie ◽  
Yang Guo ◽  
Bin Ni ◽  
...  
Keyword(s):  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Crystalline Polymer ◽  
Side Chain ◽  
Phase Structures

Hierarchical Supramolecular Ordering with Biaxial Orientation of a Combined Main-Chain/Side-Chain Liquid-Crystalline Polymer Obtained from Radical Polymerization of 2-Vinylterephthalate

2010 ◽  
Vol 132 (23) ◽  
pp. 8071-8080 ◽  
Author(s):  
He-Lou Xie ◽  
Chang-Kai Jie ◽  
Zhen-Qiang Yu ◽  
Xuan-Bo Liu ◽  
Hai-Liang Zhang ◽  
...  
Keyword(s):  
Radical Polymerization ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Crystalline Polymer ◽  
Side Chain ◽  
Supramolecular Ordering

Synthesis and sub-10 nm supramolecular self-assembly of a nanohybrid with a polynorbornene main chain and side-chain POSS moieties

RSC Advances ◽  
2015 ◽  
Vol 5 (86) ◽  
pp. 70163-70171 ◽  
Author(s):  
Ping-Ping Hou ◽  
Ke-Hua Gu ◽  
Yu-Feng Zhu ◽  
Zheng-Yu Zhang ◽  
Qian Wang ◽  
...  
Keyword(s):  
Inclusion Complex ◽  
Self Assembly ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Crystalline Polymer ◽  
Side Chain ◽  
Inorganic Hybrid

A polynorbornene-based mesogen-jacketed liquid crystalline polymer containing side-chain crystalline POSS moieties was synthesized through ROMP. It self-assembles into an organic–inorganic hybrid inclusion complex on the sub-10 nm scale.

Self organization of main-chain/side-chain liquid crystalline polymer based on “jacketing” effect with different lengths of spacer: from smectic to hierarchically ordered structure

RSC Advances ◽  
2015 ◽  
Vol 5 (118) ◽  
pp. 97187-97194 ◽  
Author(s):  
He-lou Xie ◽  
Bin Ni ◽  
Quan Liu ◽  
Jun Wang ◽  
Shuang Yang ◽  
...  
Keyword(s):  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Crystalline Polymer ◽  
Liquid Crystalline Polymers ◽  
Self Organization ◽  
Side Chain ◽  
Ordered Structure ◽  
Organization Behavior ◽  
Crystalline Polymers

A series of combined main-chain/side-chain liquid crystalline polymers based on the “jacketing” effect, with different alkyl spacer lengths (n = 2–10), have been successfully synthesized and their self-organization behavior has been investigated.

Design, synthesis, and characterization of a combined main-chain/side-chain liquid-crystalline polymer based on ethyl cellulose

Cellulose ◽  
2010 ◽  
Vol 17 (3) ◽  
pp. 547-558 ◽  
Author(s):  
Tianhui Hu ◽  
Helou Xie ◽  
Jianbo Xiao ◽  
Hailiang Zhang ◽  
Erqiang Chen
Keyword(s):  
Ethyl Cellulose ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Crystalline Polymer ◽  
Side Chain ◽  
Synthesis And Characterization ◽  
Design Synthesis

Rheology of Nematic Side-Chain Liquid-Crystalline Polymer:  Comparison with Main-Chain Liquid-Crystalline Polymer

2002 ◽  
Vol 35 (16) ◽  
pp. 6263-6273 ◽  
Author(s):  
Kyung Min Lee ◽  
Chang Dae Han
Keyword(s):  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Crystalline Polymer ◽  
Side Chain

New Side-Chain Liquid Crystalline Polymer with Flexible Spacer Backbone

1999 ◽  
Vol 32 (2) ◽  
pp. 521-523 ◽  
Author(s):  
Iwhan Cho ◽  
Su-Yeon Jo
Keyword(s):  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Side Chain ◽  
Flexible Spacer

Hairpin Defects in Liquid-Crystalline Polymers

MRS Bulletin ◽  
1995 ◽  
Vol 20 (9) ◽  
pp. 39-41 ◽  
Author(s):  
David R.M. Williams ◽  
Avi Halperin
Keyword(s):  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Orientational Order ◽  
Crystalline Polymer ◽  
Elastic Behavior ◽  
Topological Excitations ◽  
Crystalline Polymers ◽  
Interfacial Phase ◽  
Flexible Spacer

Conventionally, the term “defects” in liquid-crystalline systems refers to microscopic faults in the orientational order, which are usually visible optically. These are discussed in other articles in this issue. Our use of the term defect is entirely different. The defects we shall be considering, “hairpins,” occur on the scale of several angstroms and are abrupt reversals in the trajectory of a single liquid-crystalline-polymer (LCP) chain (Figure 1). In comparison to conventional defects, the direct observation of hairpin defects is much more difficult, yet their presence has important effects. Among the affected properties are the dimensions and the elasticity of the chains, the elastic behavior of the bulk nematic, and its dielectric response. Their presence should also give rise to a family of interfacial phase transitions in solutions of LCPs in nematic solvents. In turn, these are of interest in the design of liquid-crystalline displays. Hairpins in LCPs are superficially reminiscent of similar configurations in proteins and in homopolymers that undergo fold crystallization. These similarities are misleading because hairpins in proteins are permanent structures due to the chemical bonds. The folds in crystalline polymers are also fixed structures. In marked contrast, hairpin defects are mobile topological excitations that are created and annihilated continuously. Our emphasis in this article is on main-chain, semiflexible, nematic LCPs, consisting of mesogenic monomers joined by flexible spacer chains (Figure la). These polymers combine the orientational order of monomeric nematics with the flexibility and randomness inherent in polymers. The appearance of an oriented, nematic phase can be controlled either by temperature or by concentration.

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