scholarly journals Nucleobase-functionalized ABC triblock copolymers: self-assembly of supramolecular architectures

2014 ◽  
Vol 50 (65) ◽  
pp. 9145-9148 ◽  
Author(s):  
Keren Zhang ◽  
Gregory B. Fahs ◽  
Motohiro Aiba ◽  
Robert B. Moore ◽  
Timothy E. Long
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
Raft Polymerization ◽  
Abc Triblock Copolymers ◽  
Central Block ◽  
Supramolecular Architectures

RAFT polymerization afforded acrylic ABC triblock copolymers with self-complementary nucleobase-functionalized external blocks and a low-Tg soft central block.

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.

Self-assembly of grafted Y-shaped ABC triblock copolymers in solutions

2008 ◽  
Vol 129 (15) ◽  
pp. 154903 ◽  
Author(s):  
Yuhua Yin ◽  
Run Jiang ◽  
Baohui Li ◽  
Qinghua Jin ◽  
Datong Ding ◽  
...  
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
Abc Triblock Copolymers

Amphiphilic ABC Triblock Copolymers Tailored via RAFT Polymerization as Textile Surface Modifiers with Dual-Action Properties

2013 ◽  
Vol 46 (7) ◽  
pp. 2616-2627 ◽  
Author(s):  
Martin Messerschmidt ◽  
Hartmut Komber ◽  
Liane Häußler ◽  
Christian Hanzelmann ◽  
Manfred Stamm ◽  
...  
Keyword(s):  
Triblock Copolymers ◽  
Raft Polymerization ◽  
Abc Triblock Copolymers ◽  
Surface Modifiers ◽  
Dual Action

scholarly journals Influence of nucleobase stoichiometry on the self-assembly of ABC triblock copolymers

2016 ◽  
Vol 52 (48) ◽  
pp. 7564-7567 ◽  
Author(s):  
Keren Zhang ◽  
Samantha J. Talley ◽  
Ya Peng Yu ◽  
Robert B. Moore ◽  
Mitsuhiro Murayama ◽  
...  
Keyword(s):  
Long Range ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
The Self ◽  
Patterned Substrates ◽  
Abc Triblock Copolymers ◽  
Self Assembled

ABC triblock copolymers bearing adenine- and thymine-functionalized external blocks self-assembled into long-range, ordered lamellar microphase-separated morphologies on non-patterned substrates.

Thermo- and pH-induced self-assembly of P(AA-b -NIPAAm-b -AA) triblock copolymers synthesized via RAFT polymerization

2015 ◽  
Vol 54 (8) ◽  
pp. 1109-1118 ◽  
Author(s):  
Chih-Yu Kuo ◽  
Trong-Ming Don ◽  
Shih-Chi Hsu ◽  
Chia-Fen Lee ◽  
Wen-Yen Chiu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
Raft Polymerization

Synthesis, self-assembly and self-healing properties of organic–inorganic ABA triblock copolymers with poly(POSS acrylate) endblocks

2019 ◽  
Vol 10 (19) ◽  
pp. 2424-2435 ◽  
Author(s):  
Bingjie Zhao ◽  
Sen Xu ◽  
Sixun Zheng
Keyword(s):  
Self Assembly ◽  
Triblock Copolymer ◽  
Chain Transfer ◽  
Triblock Copolymers ◽  
Raft Polymerization ◽  
Self Healing ◽  
Reversible Addition ◽  
Aba Triblock Copolymer

A novel organic–inorganic ABA triblock copolymer with a poly(acrylate amide) (PAA) midblock and poly(POSS acrylate) [P(POSS)] endblocks was synthesized via sequential reversible addition–fragmentation chain transfer (RAFT) polymerization.

Self-Assembly of Binary Mesocrystals from Blends of BABCB Multiblock Copolymers and ABC Triblock Copolymers

2015 ◽  
Vol 48 (10) ◽  
pp. 3386-3394 ◽  
Author(s):  
Meijiao Liu ◽  
Binkai Xia ◽  
Weihua Li ◽  
Feng Qiu ◽  
An-Chang Shi
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
Multiblock Copolymers ◽  
Abc Triblock Copolymers

Self-assembly of ABC triblock copolymers under 3D soft confinement: a Monte Carlo study

Soft Matter ◽  
2016 ◽  
Vol 12 (3) ◽  
pp. 965-972 ◽  
Author(s):  
Nan Yan ◽  
Yutian Zhu ◽  
Wei Jiang
Keyword(s):  
Monte Carlo ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Monte Carlo Study ◽  
Abc Triblock Copolymers

A serious of novel morphologies obtained by self-assembly of ABC triblock copolymers under 3D soft confinement.

Sign in / Sign up

Export Citation Format

Share Document