نتایج جستجو برای: based ionomers

تعداد نتایج: 2935014  

Journal: :Angewandte Chemie 2021

Poly(alkyl-terphenyl piperidinium) ionomers and membranes were used for H2–O2 anion exchange membrane fuel cells, achieved a high power density of 2.58 W cm−2, which is new record polyaromatic-based cells. Details the study are described by Young Moo Lee co-workers in their Research Article on page 7710.

2014
Yongjun Leng Lizhu Wang Michael A. Hickner Chao-Yang Wang

Improving cell performance and durability through both new materials and membrane electrode processing optimization is needed for the commercialization of alkaline membrane fuel cell (AMFC) technologies. In this work, we adopted an in-situ cross-linking strategy of an anion-conducting block copolymer to prepare durable ionomers for use in alkaline membrane fuel cells (AMFCs). Our goal was to us...

Journal: :Chemical communications 2010
Jing Wang Cai-Feng Wang Hai-Xia Shen Su Chen

A new approach for fabricating a series of multi-functional honeycomb-patterned films was successfully achieved using ionomers via breath figures.

Journal: :Journal 1999
N D Ruse

"Compomers" are recently introduced products marketed as a new class of dental materials. These materials are said to provide the combined benefits of composites (the "comp" in their name) and glass ionomers ("omer"). Based on a critical review of the literature, the author argues that "compomers" do not represent a new class of dental materials but are merely a marketing name given to a dental...

Journal: :Journal of Chemical Education 1981

Journal: :Prilozi 2009
E Gjorgievska J Nicholson W S Iljovska I Slipper

UNLABELLED (Full text is available at http://www.manu.edu.mk/prilozi). OBJECTIVES The study was aimed at determining the effectiveness of fluoride-releasing materials (conventional and resin-modified glass-ionomers, compomer and fluoride-releasing composite resin) in inhibiting demineralization of restored teeth in an artificial caries medium. METHODS A total of 72 teeth (36 deciduous and 3...

Journal: :Chemical communications 2009
Kenji Miyatake Takuya Shimura Takefumi Mikami Masahiro Watanabe

Aromatic polymers containing perfluorosulfonic acid groups show well-developed and interconnected ionic clusters, and thus high proton conductivity at wide humidity range.

2007
Russell J. Varley Sybrand van der Zwaag

Ionomers are a class of polymers which have up to 20mol% of ionic species incorporated into the structure of the organic polymer. These ionic species create interactions or aggregates [1, 2], not present in comparable nonionic polymers, have a profound effect upon the mechanical and physical properties of the polymer. As a result there has been much research in both academia and industry over t...

Journal: :Macromolecules 2021

Processing ionomers is complicated by their ability to exhibit brittle fracture even in the melt state. This work introduces a new strategy for providing with good flowability, extensibili...

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