Understanding interfacial segregation in polymer blend films with random and mixed side chain bottlebrush copolymer additives

Soft Matter ◽  
2021 ◽  
Author(s):  
Hao Mei ◽  
Jyoti P. Mahalik ◽  
Dongjoo Lee ◽  
Travis S. Laws ◽  
Tanguy Terlier ◽  
...  
Keyword(s):  
Polymer Blend ◽  
Side Chain ◽  
Linear Polymers ◽  
Surface Enrichment ◽  
Blend Films ◽  
Impact Surface ◽  
Interfacial Segregation

We show that side-chain microstructure does not significantly impact surface enrichment of bottlebrush additives in blends with linear polymers.

scholarly journals Structural, Thermal, Optical Characterizations of PANI/PMMA Composite Doped by TiO2 as an Application in Optoelectronic Devices

2021 ◽  
Author(s):  
Q. A. Alsulami ◽  
A. A. Rajeh
Keyword(s):  
Thin Films ◽  
Polymer Blend ◽  
Crystal Size ◽  
Casting Method ◽  
Third Order ◽  
Blend Films ◽  
High Efficient ◽  
Amorphous Nature ◽  
Reflectance Coefficient ◽  
Vibrational Bands

Abstract The casting method was employed for the preparation of polymer blend films doped with TiO2 (0.5, 1, 1.5, and 2.3 wt.%). The XRD outcomes show that TiO2 phase formation is anatase, with an average crystal size of 20.25 nm. PANI/PMMA-TiO2 nanocomposites samples have an amorphous nature. In addition, the degree of amorphousity is increased with the increase of the content of the TiO2 NPs. The FTIR method was employed for presenting the vibrational bands of the nanocomposites and the intermolecular bonding of the blend with the TiO2 NPs. The applied investigation involved the optical constant like absorption as well as t90-etransmission spectra, refractive index, reflectance, coefficient extinction, dielectric constant’ imaginary and real parts, the susceptibility (χ3) of third order and the optical band gaps. The optical band gap (Eg) values of the films of fabricated nanocomposites was lower upon doping (≤ 1.5 wt.%). The reduction of the value happened due to the introduction of the preselected TiO2 NPs into thin films. Such values significantly match the values which were revealed by the Tauc technique. It was proved through DSC and TGA techniques that TiO2 NPs can lead to the enhancement of the polymer blend in terms of thermal stability. As displayed by the DSC analysis, there is a single Tg of the polymer blend (PANI/PMMA), which prove their miscibility. The optical constants displayed by the experimental results show noticeable changes upon raising the doping concentrations. The resultant doped thin films indicate that the fabricating high-efficient optoelectronic machines are greatly promising.

Selective Chain Alignment of Conducting Polymer Blend Films by an Ultrafast Laser

2015 ◽  
Vol 217 (4) ◽  
pp. 537-542 ◽  
Author(s):  
Sangmin Chae ◽  
Kuk Hyun Jo ◽  
Si Woo Lee ◽  
Hee-Sung Keum ◽  
Hyo Jung Kim ◽  
...  
Keyword(s):  
Conducting Polymer ◽  
Polymer Blend ◽  
Ultrafast Laser ◽  
Blend Films ◽  
Chain Alignment

Energy Landscape of Vertically Anisotropic Polymer Blend Films toward Highly Efficient Polymer Light-Emitting Diodes (PLEDs)

2018 ◽  
Vol 28 (8) ◽  
pp. 1705903 ◽  
Author(s):  
Muhammad Umair Hassan ◽  
Yee-Chen Liu ◽  
Ali K. Yetisen ◽  
Haider Butt ◽  
Richard Henry Friend
Keyword(s):  
Polymer Blend ◽  
Light Emitting Diodes ◽  
Energy Landscape ◽  
Light Emitting ◽  
Blend Films ◽  
Highly Efficient ◽  
Polymer Light Emitting Diodes

scholarly journals Spectroscopic, thermal, structural and electrical studies on VO2+ ions doped PVA/MAA:EA polymer blend films

2019 ◽  
Vol 4 (2) ◽  
pp. 267-275 ◽  
Author(s):  
Ojha Pravakar ◽  
T. Siddaiah ◽  
P.V.R.K. Ramacharyulu ◽  
N.O. Gopal ◽  
Ch. Ramu ◽  
...  
Keyword(s):  
Polymer Blend ◽  
Blend Films ◽  
Electrical Studies

Controlling nanoparticle crystallinity and surface enrichment in polymer (P3HT)/Nanoparticle(PCBM) blend films with tunable soft confinement

Polymer ◽  
2018 ◽  
Vol 136 ◽  
pp. 37-46 ◽  
Author(s):  
Abul F. Huq ◽  
Irina Zvonkina ◽  
Abdullah M. Al-Enizi ◽  
Alamgir Karim
Keyword(s):  
Surface Enrichment ◽  
Blend Films

Influence of the blend compatibility on the morphology of thin polymer blend films

1999 ◽  
Vol 38 (5-6) ◽  
pp. 563-576 ◽  
Author(s):  
J. S. Gutmann ◽  
P. Müller-Buschbaum ◽  
D. W. Schubert ◽  
N. Stribeck ◽  
M. Stamm
Keyword(s):  
Polymer Blend ◽  
Blend Films ◽  
Thin Polymer

Phase Behavior and Dewetting for Polymer Blend Films Studied by In Situ AFM and XPS:  From Thin to Ultrathin Films

Langmuir ◽  
2007 ◽  
Vol 23 (22) ◽  
pp. 11107-11111 ◽  
Author(s):  
Yonggui Liao ◽  
Jichun You ◽  
Tongfei Shi ◽  
Lijia An ◽  
Pradip Kumar Dutta
Keyword(s):  
Phase Behavior ◽  
Polymer Blend ◽  
Ultrathin Films ◽  
Blend Films
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