Mesoporous Block Copolymer Nanoparticles with Tailored Structures by Hydrogen-Bonding-Assisted Self-Assembly

2012 ◽  
Vol 24 (14) ◽  
pp. 1889-1893 ◽  
Author(s):  
Renhua Deng ◽  
Shanqin Liu ◽  
Jingyi Li ◽  
Yonggui Liao ◽  
Juan Tao ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Block Copolymer ◽  
Self Assembly

Nano-structuring polymer/fullerene composites through the interplay of conjugated polymer crystallization, block copolymer self-assembly and complementary hydrogen bonding interactions

2015 ◽  
Vol 6 (5) ◽  
pp. 721-731 ◽  
Author(s):  
Fei Li ◽  
Kevin G. Yager ◽  
Noel M. Dawson ◽  
Ying-Bing Jiang ◽  
Kevin J. Malloy ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Block Copolymer ◽  
Supramolecular Chemistry ◽  
Self Assembly ◽  
Conjugated Polymer ◽  
Composite Nanofibers ◽  
Core Shell ◽  
Hydrogen Bonding Interactions ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Core–shell P3HT/fullerene composite nanofibers were obtained using supramolecular chemistry involving cooperative orthogonal non-covalent interactions.

scholarly journals Tuning the Properties of Hydrogen-bonded Block Copolymer Worm Gels Prepared via Polymerization-Induced Self-Assembly

2021 ◽  
Author(s):  
Eleanor Raphael ◽  
Matthew J Derry ◽  
Michael Hippler ◽  
Steven P Armes
Keyword(s):  
Hydrogen Bonding ◽  
Carboxylic Acid ◽  
Block Copolymer ◽  
Self Assembly ◽  
Raft Agent ◽  
Stearyl Methacrylate ◽  
Hydrogen Bonded

Polymerization-induced self-assembly (PISA) is exploited to design hydrogen-bonded poly(stearyl methacrylate)-poly(benzyl methacrylate) [PSMA-PBzMA] worm gels in n-dodecane. Using a carboxylic acid-based RAFT agent facilitates hydrogen bonding between neighboring worms to produce...

Complementary Hydrogen Bonding and Block Copolymer Self-Assembly in Cooperation toward Stable Solar Cells with Tunable Morphologies

2013 ◽  
Vol 46 (22) ◽  
pp. 9021-9031 ◽  
Author(s):  
Fei Li ◽  
Kevin G. Yager ◽  
Noel M. Dawson ◽  
Jianzhong Yang ◽  
Kevin J. Malloy ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Solar Cells ◽  
Block Copolymer ◽  
Self Assembly

Fabrication of fibril like aggregates by self-assembly of block copolymer mixtures via interpolymer hydrogen bonding

Polymer ◽  
2008 ◽  
Vol 49 (9) ◽  
pp. 2354-2361 ◽  
Author(s):  
Junpeng Gao ◽  
Yuhan Wei ◽  
Binyao Li ◽  
Yanchun Han
Keyword(s):  
Hydrogen Bonding ◽  
Block Copolymer ◽  
Self Assembly

Hydrogen-Bonding-Mediated Fragmentation and Reversible Self-assembly of Crystalline Micelles of Block Copolymer

2015 ◽  
Vol 49 (1) ◽  
pp. 367-372 ◽  
Author(s):  
Jie-Xin Yang ◽  
Bin Fan ◽  
Jun-Huan Li ◽  
Jun-Ting Xu ◽  
Bin-Yang Du ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Block Copolymer ◽  
Self Assembly

The Self-Assembly of an Amphiphilic Block Copolymer: A Dissipative Particle Dynamics Study

2005 ◽  
Vol 42 (3) ◽  
pp. 180-183 ◽  
Author(s):  
S. G. Schulz ◽  
U. Frieske ◽  
H. Kuhn ◽  
G. Schmid ◽  
F. Müller ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
The Self ◽  
Amphiphilic Block Copolymer

scholarly journals Self-Assembled Bimetallic Aluminum-Salen Catalyst for the Cyclic Carbonates Synthesis

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 4097
Author(s):  
Wooyong Seong ◽  
Hyungwoo Hahm ◽  
Seyong Kim ◽  
Jongwoo Park ◽  
Khalil A. Abboud ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Reaction Pathway ◽  
Kinetic Studies ◽  
Cyclic Carbonate ◽  
Reaction Conditions ◽  
Formation Reaction ◽  
X Ray ◽  
Carbonate Formation ◽  
Salen Aluminum

Bimetallic bis-urea functionalized salen-aluminum catalysts have been developed for cyclic carbonate synthesis from epoxides and CO2. The urea moiety provides a bimetallic scaffold through hydrogen bonding, which expedites the cyclic carbonate formation reaction under mild reaction conditions. The turnover frequency (TOF) of the bis-urea salen Al catalyst is three times higher than that of a μ-oxo-bridged catalyst, and 13 times higher than that of a monomeric salen aluminum catalyst. The bimetallic reaction pathway is suggested based on urea additive studies and kinetic studies. Additionally, the X-ray crystal structure of a bis-urea salen Ni complex supports the self-assembly of the bis-urea salen metal complex through hydrogen bonding.

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.

Nanoscratch-Directed Self-Assembly of Block Copolymer Thin Films

2021 ◽  
Vol 13 (4) ◽  
pp. 5772-5781
Author(s):  
Dong Hyup Kim ◽  
Ahram Suh ◽  
Geonhyeong Park ◽  
Dong Ki Yoon ◽  
So Youn Kim
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Self Assembly

Oxidation and ATP dual-responsive block copolymer containing tertiary sulfoniums: self-assembly, protein complexation and triggered release

2021 ◽  
Author(s):  
Yanfen Jiang ◽  
Shuqi Dong ◽  
Guoyang Qin ◽  
Li Liu ◽  
Hanying Zhao
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Phenylboronic Acid ◽  
Cationic Polymer ◽  
Release Profile ◽  
Triggered Release ◽  
Dual Responsive ◽  
Protein Complexation

Alkylation of thioether-containing block copolymer simultaneously incorporated sulfoniums and phenylboronic acid moieties. The co-assembly of this cationic polymer and protein generated micelles with an H2O2-and ATP-responsive release profile.

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