نتایج جستجو برای: binary blends

تعداد نتایج: 128502  

1999
Xuejun Zhang Anita K. Alanko Samson A. Jenekhe Kenneth J. Wynne

Bilayer xerographic photoreceptors in which ^-conjugated polymers and binary conjugated polymer blends are used as the charge generation layer have been fabricated, evaluated, and shown to be highly efficient. Devices incorporating poly(l,4-phenylene benzobisthiazole), poly(2,5-pyridylene benzobisthiazole), poly(l,4-phenylenebisvinylene benzobisthiazole), poly(l,4-(2-hydroxy)phenylene benzobist...

2016
Michael Schmitt Jianan Zhang Jaejun Lee Bongjoon Lee Xin Ning Ren Zhang Alamgir Karim Robert F Davis Krzysztof Matyjaszewski Michael R Bockstaller

The tethering of ligands to nanoparticles has emerged as an important strategy to control interactions and organization in particle assembly structures. We demonstrate that ligand interactions in mixtures of polymer-tethered nanoparticles (which are modified with distinct types of polymer chains) can impart upper or lower critical solution temperature (UCST/LCST)-type phase behavior on binary p...

2017
Emmanuel O Olorunsola Grace A Akpan Michael U Adikwu

This study was aimed at evaluating chitosan-microcrystalline cellulose blends as direct compression excipients. Crab shell chitosan, α-lactose monohydrate, and microcrystalline cellulose powders were characterized. Blends of the microcrystalline cellulose and chitosan in ratios 9 : 1, 4 : 1, 2 : 1, and 1 : 1 as direct compression excipients were made to constitute 60% of metronidazole tablets. ...

Journal: :Advanced Energy Materials 2023

Non-fullerene acceptor (NFA)-based ternary bulk heterojunction solar cells (TSC) are the most efficient organic (OSCs) today due to their broader absorption and quantum efficiencies (QE) often surpassing those of corresponding binary blends. We study how energetics driving charge transfer at electron donor:electron (D/A) interfaces impact QE in blends PBDB-T-2F donor with several pairs lower ba...

aIn the present study a 4-stroke 5hp diesel engine was tested with Diesel oil plus cottonseed oil blends. The blends in different proportions (10 to 50 percent by volume) were tested at constant speed of 1500 rpm. The said engine is operated at different loads and characteristics like Brake power, Brake thermal efficiency, specific fuel consumption etc. Engine performance for blends resulted in...

2015
Jin Fang Zaiyu Wang Jianqi Zhang Yajie Zhang Dan Deng Zhen Wang Kun Lu Wei Ma Zhixiang Wei

Ternary organic solar cells (OSCs), which blend two donors and fullerene derivatives with different absorption ranges, are a promising potential strategy for high-power conversion efficiencies (PCEs). In this study, inverted ternary OSCs are fabricated by blending a highly crystalline small molecule BDT-3T-CNCOO in a low band gap polymer PBDTTT-C-T:PC71BM. As the small molecule is introduced, t...

2016
Catarina Varanda Inês Portugal Jorge Ribeiro Artur M S Silva Carlos M Silva

Over the recent years, bitumen modification with polymers, acids, or mineral fillers has gained relevance to adjust its performance properties. This work reports the use of polyphosphoric acid (PPA) for the modification of formulated bitumen. With this objective, an in-depth literature review on PPA modification was firstly performed. Subsequently, five individual refinery components were selec...

2014
Y. Yan J. S. Fleming Yu Yan

Industry in the developed world has come to depend heavily on HFC refrigerants, all blends except for R134a. This dependency will increase when the last of the HCFCs, R22, becomes unavailable in the near future. Furthermore, the pressure for increased efficiency combined with reduced running costs and environmental impact is relentless, particularly since the Kyoto Protocol which has had the ef...

Journal: :Language, speech, and hearing services in schools 2012
Krystal L Werfel C Melanie Schuele

PURPOSE The purpose of this study was to describe the growth of children's segmentation and representation of consonant blends in the kindergarten year and to evaluate the extent to which linguistic features influence segmentation and representation of consonant blends. Specifically, the roles of word position (initial blends, final blends), class of blends, homorganicity, and nasality were con...

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