Results 71 to 80 of about 985,097 (223)

Metastable Polymers for Circular 3D Printing

Advanced Materials, EarlyView.
3D‐printed polymers are usually permanent and hard to recycle. Here, metastable polymers are designed to fall apart on demand. A chemical trigger unzips the printed material back into its original building blocks within minutes at room temperature.
Johannes Markhart, Philipp Mainik, Eva Blasco   +2 more
wiley   +1 more source

Prototyping of polymer based microbioreactors: micromachining by using poly(methyl methacrylate) and poly(dimethylsiloxane) polymer materials [PDF]

, 2013
Polymers have been widely accepted as materials for the fabrication of microbioreactor prototypes. In this work, microfabrication strategies namely the micromachining and casting (soft lithography) with the use poly(methyl methacrylate) (PMMA) and poly ...
Halimoon, Hazwan, Zainal Alam, Muhd Nazrul Hisham   +1 more
core  

Thermal stability and degradation of poly(N-(4-chlorophenyl) acrylamide) homopolymer and copolymer of N-(4-chlorophenyl) acrylamide with methyl methacrylate

Journal of Saudi Chemical Society, 2014
Different concentrations of copolymer of (N-(4-chlorophenyl) acrylamide) (CA) with methyl methacrylate (MMA) were prepared and the reactivity ratio values of copolymerization were calculated using 1H NMR technique.
M. A. Diab, A. Z. El-Sonbati, A. A. El-Bindary, H. M. Abd. El-Ghany   +3 more
doaj   +1 more source

Fast Hydrogel Micro‐Actuators Driven by Electric Fields

Advanced Materials, EarlyView.
We report the fabrication of chemically programmable electroactuating microstructures through the first integration of two‐photon polymerization with electrically actuated gelatin methacrylate‐based hydrogels. By tailoring the charge of the polymer network, we demonstrate programmable polarity‐dependent bending, enabling microstructures that ...
Annaël Sort‐Montenegro, Jason M. Delente, Žiga Roblek, Yekaterina Tskhe, Luke Dowling, Colm Delaney, Larisa Florea   +6 more
wiley   +1 more source

Computation‐Less, Bias‐Free, and Ultra‐Broadband Photodetector for On‐Chip Edge Extraction

Advanced Materials, EarlyView.
A computation‐less, bias‐free, and ultra‐broadband photodetector directly converts local optical‐intensity gradients into signed photocurrents through a position‐dependent bi‐directional photoresponse. This intrinsic physical sensing mechanism enables single‐pixel edge extraction from the near‐infrared to the long‐wave infrared at room temperature ...
Jintao Fu, Hao Jiang, Xingsi Liu, Fakun Wang, Yang Peng, Qi Jie Wang, Weibo Gao, Xingzhan Wei, Cheng‐Wei Qiu   +8 more
wiley   +1 more source

Combination effects of graphene and layered double hydroxides on intumescent flame-retardant poly(methyl methacrylate) nanocomposites

, 2014
A novel intumescent flame-retardant poly(methyl methacrylate) (PMMA) nanocomposite has been prepared via in situ polymerization by incorporating intumescent flame retardants (IFRs), graphene and layered double hydroxides (LDHs).
Huang, Guobo, Lu, Pingping, Song, Pingan, Wu, Chenglin, Liang, Huading, Chen, Suqing   +5 more
core   +1 more source

Bacterial Growth Kinetics under a Novel Flexible Methacrylate Dressing Serving as a Drug Delivery Vehicle for Antiseptics [PDF]

, 2013
A flexible methacrylate powder dressing (Altrazeal®) transforms into a wound contour conforming matrix once in contact with wound exudate. We hypothesised that it may also serve as a drug delivery vehicle for antiseptics.
Verena Dosch, David Leaper, Leitgeb, Johannes, Leaper, David J., Leaper, David, Assadian, Ojan, Keith Cutting, Dosch, Verena, Christina Forstner, Cutting, Keith, Rupert Schuster, Schuster, Rupert, Axel Kramer, Ojan Assadian, Johannes Leitgeb, Kramer, Axel, Forstner, Christina   +16 more
core   +1 more source

Poly(Alkoxythiophene) Rod‐Coil Block Copolymers for Organic Electrochemical Transistors

Advanced Materials, EarlyView.
We present the first synthesis of poly(3‐alkoxythiophene) rod‐coil block copolymers as a new architecture for OMIECs. Incorporating PEG and PLLA coils can enhance device performance beyond the homopolymer. The figure‐of‐merit depends uniquely on coil length.
Junfu Tian, Wentao Shan, Rachael Found, Paola Mantegazza, Francesco Leoni, Andreas W. Erhardt, Yuyun Yao, Matus Stredansky, Arianna Magni, Adam Marks, Elena Chulanova, Zeinab Hamid, Yueying Huang, Wanpeng Lu, Xian'e Li, Baopu Zhang, Qingpei Wan, Christina Kousseff, Matilde Concilio, Ruth Theresia Arwani, Caroline A. Ross, Sahika Inal, Giovanni Costantini, Iain McCulloch   +23 more
wiley   +1 more source

Obtenção e caracterização de poliestireno expansível com morfologia casca-núcleo [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais.Nas últimas décadas a literatura aberta vem registrando um aumento no número de estudos em partículas ...
Ribeiro, Luiz Fernando Belchior
core  

Pyrolysis mass spectrometry analysis of thiophene capped poly(methyl methacrylate) and poly(methylthienyl methacrylate)

, 2003
The thermal degradations of thiophene-capped poly(methyl methacrylate) and poly(methylthienyl methacrylate) were studied via direct pyrolysis mass spectrometry.
Yaǧci, Yusuf, Athar, Imran, Hacaloğlu, Jale, Toppare, Levent Kamil   +3 more
core   +1 more source