scholarly journals Perylene diimide-based supramolecular polymer with temperature-sensitive ratiometric fluorescence responsiveness in solution and gels

2020 ◽  
Vol 1 (5) ◽  
pp. 1330-1336
Author(s):  
Jie Liu ◽  
Yubing Zhang ◽  
Chonghua Zhang ◽  
Peisheng Zhang ◽  
Rongjin Zeng ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Fluorescence Property ◽  
Perylene Diimide ◽  
Supramolecular Polymer ◽  
Temperature Sensitive ◽  
Ratiometric Fluorescence ◽  
Temperature Dependent ◽  
Red Emission ◽  
Quadruple Hydrogen Bonding

The quadruple hydrogen bonding UPy units are designed to conjugate with unsubstituted PDI to exhibit bright red emission in aggregated state, together with temperature-dependent ratiometric fluorescence property in solution and hydrogels.

One-pot synthesis of supramolecular polymer containing quadruple hydrogen bonding units

2007 ◽  
Vol 43 (10) ◽  
pp. 4460-4465 ◽  
Author(s):  
Kyung Ju Lee ◽  
Do Kyoung Lee ◽  
Yong Woo Kim ◽  
Jong Hak Kim
Keyword(s):  
Hydrogen Bonding ◽  
Supramolecular Polymer ◽  
One Pot ◽  
One Pot Synthesis ◽  
Quadruple Hydrogen Bonding

scholarly journals Recent developments: self-healing polymers based on quadruple hydrogen bonds

2021 ◽  
Vol 290 ◽  
pp. 01037
Author(s):  
Guangpu Zhang ◽  
Zhe Sun ◽  
Miaomiao Li
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Supramolecular Polymer ◽  
Self Healing ◽  
Wearable Electronics ◽  
Stimuli Responsive ◽  
High Thermodynamic Stability ◽  
Recent Developments ◽  
Quadruple Hydrogen Bonding ◽  
Quadruple Hydrogen Bond

The microcrack of materials was inevitable in the process of transportation, storage and utilization, which may cause functional failure and resources waste. Inspired by nature, self-healing polymers have attracted significant attention owing to widespread applications in wearable electronics, cartilage replacement, coatings and elastomer. Compared with extrinsic healing, intrinsically healable polymers offer multiple self-healing by supramolecular reversible interactions, such as host-guest interactions, π-π stacking, ionic interactions and hydrogen-bonding. Self-healing polymers based on quadruple hydrogen bonds have been extensively investigated due to its high thermodynamic stability and rapid kinetic reversibility, and have been well developed for the past two decades. In this paper, the strategies and designs of self-repairing polymers based on quadruple hydrogen bond were classified and summarized, including main-chain self-healing polymers, side-chain self-healing polymers and supramolecular self-healing polymers. It is expected that quadruple hydrogen bonding can be construct more robust, highly tough, multi-stimuli-responsive, and fast self-healing supramolecular polymer, and is potential to be applied to numerous civilian and military fields in the future.

scholarly journals Microphase separation of a quadruple hydrogen bonding supramolecular polymer: effect of the steric hindrance of the ureido-pyrimidone on their viscoelasticity

RSC Advances ◽  
2019 ◽  
Vol 9 (16) ◽  
pp. 8905-8911 ◽  
Author(s):  
Lei Kan ◽  
Peng Zhang ◽  
Hongkun Jiang ◽  
Shuai Zhang ◽  
Zhengdao Liu ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Steric Hindrance ◽  
Microphase Separation ◽  
Supramolecular Polymers ◽  
Supramolecular Polymer ◽  
Quadruple Hydrogen Bonding

The supramolecular polymers based on 2-ureido-4[1H]-pyrimidone (UPy) with different structure were prepared and the effects of microtopography on the viscoelasticity were investigated.

Photoresponsive supramolecular polymers based on quadruple hydrogen-bonding and a photochromic azobenzene motif

2018 ◽  
Vol 9 (44) ◽  
pp. 5395-5401 ◽  
Author(s):  
Shaobo Tan ◽  
Ye Sha ◽  
Tianyu Zhu ◽  
Md Anisur Rahman ◽  
Chuanbing Tang
Keyword(s):  
Hydrogen Bonding ◽  
Supramolecular Polymers ◽  
Supramolecular Polymer ◽  
Quadruple Hydrogen Bonding ◽  
Hydrogen Bonded

A photoresponsive quadruple hydrogen-bonded supramolecular polymer was constructed using photochromic azobenzene and ureidopyrimidinone motifs.

scholarly journals Quadruple Hydrogen Bond-Containing A-AB-A Triblock Copolymers: Probing the Influence of Hydrogen Bonding in the Central Block

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4705
Author(s):  
Boer Liu ◽  
Xi Chen ◽  
Glenn A. Spiering ◽  
Robert B. Moore ◽  
Timothy E. Long
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Microphase Separation ◽  
Triblock Copolymers ◽  
Random Copolymer ◽  
Thermomechanical Properties ◽  
Structure Property ◽  
Scanning Calorimetry ◽  
Central Block ◽  
Quadruple Hydrogen Bonding

This work reveals the influence of pendant hydrogen bonding strength and distribution on self-assembly and the resulting thermomechanical properties of A-AB-A triblock copolymers. Reversible addition-fragmentation chain transfer polymerization afforded a library of A-AB-A acrylic triblock copolymers, wherein the A unit contained cytosine acrylate (CyA) or post-functionalized ureido cytosine acrylate (UCyA) and the B unit consisted of n-butyl acrylate (nBA). Differential scanning calorimetry revealed two glass transition temperatures, suggesting microphase-separation in the A-AB-A triblock copolymers. Thermomechanical and morphological analysis revealed the effects of hydrogen bonding distribution and strength on the self-assembly and microphase-separated morphology. Dynamic mechanical analysis showed multiple tan delta (δ) transitions that correlated to chain relaxation and hydrogen bonding dissociation, further confirming the microphase-separated structure. In addition, UCyA triblock copolymers possessed an extended modulus plateau versus temperature compared to the CyA analogs due to the stronger association of quadruple hydrogen bonding. CyA triblock copolymers exhibited a cylindrical microphase-separated morphology according to small-angle X-ray scattering. In contrast, UCyA triblock copolymers lacked long-range ordering due to hydrogen bonding induced phase mixing. The incorporation of UCyA into the soft central block resulted in improved tensile strength, extensibility, and toughness compared to the AB random copolymer and A-B-A triblock copolymer comparisons. This study provides insight into the structure-property relationships of A-AB-A supramolecular triblock copolymers that result from tunable association strengths.

Use of Quadruple Hydrogen Bonding as the Switching Phase in Thermo- and Light-Responsive Shape Memory Hydrogel

2021 ◽  
Author(s):  
Yufang Song ◽  
Yiming Chen ◽  
Ran Chen ◽  
Hongji Zhang ◽  
Dongjian Shi ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Shape Memory ◽  
Quadruple Hydrogen Bonding

Design of Temperature Sensitive Imprinted Polymer Hydrogels Based on Multiple-Point Hydrogen Bonding

2004 ◽  
Vol 4 (7) ◽  
pp. 680-684 ◽  
Author(s):  
Xue-Yong Liu ◽  
Ying Guan ◽  
Xiao-Bin Ding ◽  
Yu-Xing Peng ◽  
Xin-Ping Long ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Multiple Point ◽  
Temperature Sensitive ◽  
Imprinted Polymer ◽  
Polymer Hydrogels
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