Synthesis of Styrenic Triblock Copolymer and its Application in Polyester Blends

2021 ◽  
Vol 398 (1) ◽  
pp. 1900201
Author(s):  
Adarsh R. Rao ◽  
Suriya V K ◽  
Shraddha M. Yeolekar ◽  
Nikhil P. Patel
Keyword(s):  
Triblock Copolymer

Morphological transformations in solution-cast Styrene-Butadiene-Styrene (SBS) triblock copolymer thin films

1995 ◽  
Vol 53 ◽  
pp. 184-185
Author(s):  
Ginam Kim ◽  
W. Marsillo ◽  
M. Libera
Keyword(s):  
Thin Films ◽  
Triblock Copolymer ◽  
Annealing Treatment ◽  
Minor Component ◽  
Solvent Evaporation ◽  
Single Crystal Substrate ◽  
Transparent Films ◽  
Crystal Substrate ◽  
Solution Cast ◽  
Morphological Transformations

The fact that block copolymers can assume a range of morphologies depending upon such variables as relative block length and molecular weight is now well known. In the case of poly(styrene)[PS]-poly(butadiene)[PB]-poly(styrene) (SBS) triblock copolymer, the morphologies range from spheres (roughly ~20% minor component), to cylinders (roughly 20%~35% minor component), to lamellae (roughly equal component fractions) Most recently, there has been increasing interest in transformations between morphologies by thermal annealing. This paper describes initial results studying the effect of solvent evaporation rate and post-casting annealing treatment on the morphology of SBS thin films.TEM specimens were prepared by solution casting electron transparent films. 50 μl of 0.1 wt% SBS (30% styrene, Mw=14,000, Scientific Polymer Products, Inc.) dissolved in toluene was deposited on a polished NaCl single crystal substrate placed in a small dish. After solvent evaporation the film was cut into small squares, floated from the salt in water, and each square was collected on a Cu grid.

Size Control of Block Polymer Templated Mesoporous Silicate Materials

2000 ◽  
Vol 628 ◽  
Author(s):  
Takeo Yamada ◽  
Keisuke Asai ◽  
Kenkichi Ishigure ◽  
Akira Endo ◽  
Hao S. Zhou ◽  
...  
Keyword(s):  
Mesoporous Materials ◽  
Molecular Sieve ◽  
Mesoporous Material ◽  
Triblock Copolymer ◽  
Size Control ◽  
Block Polymer ◽  
New Class ◽  
Mesoporous Silicate ◽  
Cubic Structure ◽  
Silicate Materials

ABSTRACTMesoporous materials have attracted considerable interest because of applications in molecular sieve, catalyst, and adsorbent. It will be useful for new functional device if functional molecules can be incorporated into the pore of mesoporous material. However, it is necessary to synthesize new mesoporous materials with controlled large pore size. Recently, new class of mesoporous materials has been prepared using triblock copolymer as a template. In this paper, we reported that hexagonal and cubic structure silicate mesoporous materials can be synthesized through triblock copolymer templating, and their size was controlled by synthesis condition at condensation.

Sticky ends in a self-assembling ABA triblock copolymer: the role of ureas in stimuli-responsive hydrogels

2019 ◽  
Vol 4 (1) ◽  
pp. 91-102 ◽  
Author(s):  
Ryan T. Shafranek ◽  
Joel D. Leger ◽  
Song Zhang ◽  
Munira Khalil ◽  
Xiaodan Gu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Viscoelastic Properties ◽  
Triblock Copolymer ◽  
Thermal Response ◽  
Stimuli Responsive ◽  
Self Assembling ◽  
Polymeric Hydrogels ◽  
Aba Triblock Copolymer ◽  
Responsive Hydrogels

Directed self-assembly in polymeric hydrogels allows tunability of thermal response and viscoelastic properties.

Micro-scale hollow nanosphere as highly efficient ORR electrocatalyst derived from the self-assembly of triblock copolymer (L64)

Ionics ◽  
2021 ◽  
Vol 27 (4) ◽  
pp. 1611-1618
Author(s):  
Xiaowen Ge ◽  
Xiaomei Du ◽  
Yin Sun ◽  
Junjie Zhang ◽  
Zhongyu Qiu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Triblock Copolymer ◽  
The Self ◽  
Hollow Nanosphere ◽  
Micro Scale ◽  
Highly Efficient

Association and physical gelation of ABA triblock copolymer in selective solvent

Polymer ◽  
2003 ◽  
Vol 44 (18) ◽  
pp. 5303-5310 ◽  
Author(s):  
Katsuhiro Inomata ◽  
Daisuke Nakanishi ◽  
Ai Banno ◽  
Eiji Nakanishi ◽  
Yosuke Abe ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Selective Solvent ◽  
Physical Gelation ◽  
Aba Triblock Copolymer

Research on the viscous flow transition of styrene-isoprene-styrene triblock copolymer by Rheology

2021 ◽  
Vol 28 (5) ◽  
Author(s):  
Hengyu Luo ◽  
Hui Han ◽  
Houfang Chi ◽  
Junyu Li ◽  
Songmei Zhao ◽  
...  
Keyword(s):  
Viscous Flow ◽  
Triblock Copolymer ◽  
Flow Transition

Hydroxyl Influence on Adsorption and Lubrication of an Ultrathin Aqueous Triblock Copolymer Lubricant

Langmuir ◽  
2021 ◽  
Vol 37 (4) ◽  
pp. 1465-1479
Author(s):  
Thi D. Ta ◽  
A. Kiet Tieu ◽  
Bach H. Tran
Keyword(s):  
Triblock Copolymer

scholarly journals Dissipative Particle Dynamics Study on Interfacial Properties of Symmetric Ternary Polymeric Blends

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1516
Author(s):  
Dongmei Liu ◽  
Kai Gong ◽  
Ye Lin ◽  
Tao Liu ◽  
Yu Liu ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Chain Length ◽  
Triblock Copolymer ◽  
Diblock Copolymers ◽  
Triblock Copolymers ◽  
Dissipative Particle Dynamics ◽  
Interfacial Properties ◽  
Particle Dynamics ◽  
Polymeric Blends ◽  
Polymer Component

We investigated the interfacial properties of symmetric ternary An/AmBm/Bn and An/Am/2BmAm/2/Bn polymeric blends by means of dissipative particle dynamics (DPD) simulations. We systematically analyzed the effects of composition, chain length, and concentration of the copolymers on the interfacial tensions, interfacial widths, and the structures of each polymer component in the blends. Our simulations show that: (i) the efficiency of the copolymers in reducing the interfacial tension is highly dependent on their compositions. The triblock copolymers are more effective in reducing the interfacial tension compared to that of the diblock copolymers at the same chain length and concentration; (ii) the interfacial tension of the blends increases with increases in the triblock copolymer chain length, which indicates that the triblock copolymers with a shorter chain length exhibit a better performance as the compatibilizers compared to that of their counterparts with longer chain lengths; and (iii) elevating the triblock copolymer concentration can promote copolymer enrichment at the center of the interface, which enlarges the width of the phase interfaces and reduces the interfacial tension. These findings illustrate the correlations between the efficiency of copolymer compatibilizers and their detailed molecular parameters.

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