Results 81 to 90 of about 117,238 (300)

Combined Effects of Set Retarders and Polymer Powder on the Properties of Calcium Sulfoaluminate Blended Cement Systems [PDF]

, 2018
This study investigates the effects of set retarders on the properties of polymer-modified calcium sulfoaluminate (CSA) and Portland cement blend systems at early and long-term ages.
Gwon, Seongwoo, Jang, Seung Yup, Shin, Myoungsu   +2 more
core   +2 more sources

Actuating and Sensing Composites of Liquid Crystal Elastomers and Poly(ionic liquid)s

Advanced Functional Materials, EarlyView.
Ionic conductive, mechanically tough, flexible, and stretchable filaments of a composite material comprising a liquid crystal elastomer and a poly(ionic liquid) are produced through 3D printing, which exhibit large actuation strain under stimulation and electrical resistance variation in response to deformation or environmental condition changes. Their
Zeping Liu, Xiaofeng Zheng, Shaoxia Zhang, Long Xu, Meng Liu, Jeremy Baribeault St‐Germain, Yue Zhao   +6 more
wiley   +1 more source

Investigation of the Effect of Zinc-Oxide Nanoparticles on the Structural and Optical Properties of PVDF- PVA Polymer Blend Thin Films

Iraqi Journal of Physics
The crystal structure, surface morphology, and optical properties of thin films made from a blend of polyvinylidene fluoride (PVDF) and poly(vinyl alcohol) (PVA), which were doped with zinc oxide nanoparticles (ZnO NPs) at weight ratios of 2, 4, 6, and ...
Fatmia H. Mahdi , Akram Al-Shadeedi
doaj   +1 more source

Nucleation in binary polymer blends: A self-consistent field study [PDF]

, 2002
We study the structure and thermodynamics of the critical nuclei in metastable binary polymer blends using the self-consistent field method. At the mean-field level, our results are valid throughout the entire metastable region and provide a smooth ...
Wang, Zhen-Gang, Wood, Stephen M.
core   +1 more source

In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels

Advanced Functional Materials, EarlyView.
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez, Mulazim Hussain Asim, Shumaila Arshad, Gergely Kali, Andreas Bernkop‐Schnürch   +4 more
wiley   +1 more source

Mechanochromism of Glassy Polymers Enabled by a Loop‐Forming Supramolecular Mechanophore

Advanced Functional Materials, EarlyView.
The supramolecular mechanophore LOOP is covalently introduced into glassy polymers, capable of reporting force‐induced pre‐failure damage and local fracture events in polymer glasses. Under different mechanical deformation modes, including grinding, tensile stretching, and scratching, LOOP probes irreversible events in polymer glasses through a ...
Linlin Deng, Chantal Graafsma, Felix Meyenhofer, Iulia Scarlat, Luca Bertossi, Christoph Weder, Jess M. Clough   +6 more
wiley   +1 more source

Semi-permeable membrane fabricated from organoclay/PS/EVA irradiated by ɣ-rays for water purification from dyes

Journal of Materials Research and Technology, 2019
This article summarizes the modification of bentonite to organoclay consisting of aniline monomer incorporated into the bentonite matrices. The organoclay (OC) hybrid has been exposed to gamma rays at dose of 50 kGy resulting the aniline polymerization ...
Dalal Mohamed Alshangiti, Mohamed Mohamady Ghobashy, Sheikha A. Alkhursani, Fathiah Salem Shokr, Samera Ali Al-Gahtany, Mohamed M. Madani   +5 more
doaj   +1 more source

Transport and Spectroscopic Studies of the Effects of Fullerene Structure on the Efficiency and Lifetime of Polythiophene-based Solar Cells [PDF]

, 2011
Time-dependent measurements of both power conversion efficiency and ultraviolet-visible absorption spectroscopy have been observed for solar cell blends containing the polymer poly(3-hexylthiophene-2,5-diyl) (P3HT) with two different functionalized C60 ...
Adalsteinsson, Thorsteinn, Barber Jr, Richard P., Giammona, Maxwell J., McNelis, Brian J., Nathan, Shreya, Peel, Justin H., Sena, Emilee L., Wallis, Marianne, Wesenberg, Devin   +8 more
core   +3 more sources

Uncovering the Origin of Efficiency Roll‐Off in TADF OLEDs

Advanced Functional Materials, EarlyView.
OLEDs based on thermally activated delayed fluorescent (TADF) materials often suffer from a severe drop in efficiency at high brightness levels. This work presents a technique to uncover the source of this efficiency drop, and quantifies the exciton‐exciton and exciton‐polaron annihilation processes responsible for efficiency losses in our TADF OLEDs ...
Liam G. King, Kou Yoshida, Arvydas Ruseckas, Ifor D. W. Samuel   +3 more
wiley   +1 more source

Is there a higher-order Mode Coupling transition in polymer blends?

, 2006
We present simulations on a binary blend of bead-spring polymer chains. The introduction of monomer size disparity yields very different relaxation times for each component of the blend.
Colmenero, Juan, Moreno, Angel J.
core   +1 more source