Results 51 to 60 of about 135,854 (347)

Method of cross-linking polyvinyl alcohol and other water soluble resins [PDF]

, 1980
A self supporting sheet structure comprising a water soluble, noncrosslinked polymer such as polyvinyl alcohol which is capable of being crosslinked by reaction with hydrogen atom radicals and hydroxyl molecule radicals is contacted with an aqueous ...
Hsu, L. C., May, C. E., Phillipp, W. H., Sheibley, D. W.   +3 more
core   +1 more source

3D‐Printed Hygroscopic Polymer Networks for High‐Humidity Triboelectric Nanogenerators to Wirelessly Power Implantable Electronic Devices‐ A Conceptual Pathway

Advanced Functional Materials, EarlyView.
This work develops 3D‐printable tribopolymer networks that can enhance triboelectric performance under high humidity environments. Polar hydrophilic functional groups and incorporation of zwitterionic monomers promote bound‐water–dominated interfacial polarization thereby increasing electrical outputs.
Linguangze Zhuo, Jiawang Zeng, Qian Chen, Valentin A. Bobrin, Deepak Mishra, Anthony Chun Yin Yuen, Yixia Zhang, Cyrille Boyer, Jin Zhang   +8 more
wiley   +1 more source

Microbial solutions for plastic pollutants: Caprolactam, Polyvinyl alcohol, and surgical face masks

Ruhuna Journal of Science, 2023
Caprolactam and polyvinyl alcohol (PVA) are plastic pollutants that in excess concentrations affect the environment adversely. The purpose of this study was to identify the microorganisms with the potential to break down biodegradable polyvinyl alcohol ...
Ashvini Vetal, Kiran Patil, Apurva Pawar, Gayatri Atre, Aparna Gunjal , Meghmala Waghmode   +5 more
doaj   +1 more source

Alkaline battery containing a separator of a cross-linked copolymer of vinyl alcohol and unsaturated carboxylic acid [PDF]

, 1985
A battery separator for an alkaline battery is described. The separator comprises a cross linked copolymer of vinyl alcohol units and unsaturated carboxylic acid units. The cross linked copolymer is insoluble in water, has excellent zincate diffusion and
Gonzalez-Sanabria, O. D., Hsu, L. C., Philipp, W. H., Sheibley, D. W.   +3 more
core   +1 more source

Synthesis of Porous Hydroxyapatite Scaffolds From Waste Cockle Shells by Polyurethane Sponge Replication Method [PDF]

, 2020
Researchers have synthesized hydroxyapatite-based porous scaffolds by the polyurethane sponge replication methods. Hydroxyapatite was derived from waste cockle shells through the co-precipitation method.
Afriani, F. (Fitri), Indriawati, A. (Anisa), Kurniawan, W. B. (Widodo), Rafsanjani, R. A. (Rifqi), Tiandho, Y. (Yuant), Widyaningrum, Y. (Yekti)   +5 more
core  

Polyvinyl alcohol and method for producing polyvinyl alcohol

, 2020
A polyvinyl alcohol has a number-average molecular weight (Mn) from 4,400 to 440,000, a molecular weight distribution (Mw/Mn) from 1.05 to 1.70, a degree of saponification from 80 to 99.99 mol%, wherein the polyvinyl alcohol contains an end group represented by a formula (I) below, and a molar ratio (X) of the end group based on total monomer units and
Takayama, Takumi, Maekawa, Kazuiko, Detrembleur, Christophe, Debuigne, Antoine, Jérôme, Christine   +4 more
openaire   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

Novel immobilization techniques of Acinetobacter (V2) and Paenibacillus (D9) bacterial strains for waste oil degradation

Biotechnology & Biotechnological Equipment, 2019
Bacterial isolates used for the degradation of waste oils has gained greater interest in recent times since these isolates can be immobilized. However, it’s their lack of reproducibility and continual usage that hinders its applicability. The aim of this
Yashmika Jeon, Ajay Bissessur, Parvesh Singh   +2 more
doaj   +1 more source

Endovascular Embolization by Transcatheter Delivery of Particles: Past, Present, and Future. [PDF]

, 2017
Minimally invasive techniques to occlude flow within blood vessels, initially pioneered in the 1970s with autologous materials and subsequently advanced with increasingly sophisticated engineered biomaterials, are routinely performed for a variety of ...
Avery, Reginald K, Khademhosseini, Ali, Krishnamurthy, Savitri, Oklu, Rahmi, Sabir, Sharjeel, Sheth, Rahul A, Zhang, Yu Shrike   +6 more
core   +2 more sources

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source