Results 21 to 30 of about 89,438 (264)

Designing Dendrite‐Free Zinc Anodes for Advanced Aqueous Zinc Batteries

Advanced Functional Materials, 2020
Zn metal has been regarded as the most promising anode for aqueous batteries due to its high capacity, low cost, and environmental benignity. Zn anode still suffers, however, from low Coulombic efficiency due to the side reactions and dendrite growth in ...
Junnan Hao, Xiaolong Li, Shilin Zhang, Fuhua Yang, Xiaohui Zeng, Shuai Zhang, Guyue Bo, Chunsheng Wang, Zaiping Guo   +8 more
semanticscholar   +1 more source

Swelling‐Induced Stress‐Assisted Transfer of Nanodiamond Arrays With a PVA Carrier Tape for Conformal Bio‐Integrated Sensing and Labelling

Advanced Functional Materials, EarlyView.
This work introduces a swelling‐induced, stress‐assisted water‐soluble PVA tape strategy to transfer‐print nanodiamond quantum‐sensor arrays onto soft, curved biological interfaces. The room‐temperature, water‐triggered process achieves >98% fidelity and residue‐free integration, enabling conformal quantum sensing on contact lenses, neural probes, and ...
Luyao Zhang, Lingzhi Wang, Xinhao Hu, Tai Nam Yip, Mingze Sun, Jixiang Jing, Lizhi Xu, Yuan Lin, Yong Hou, Zhiqin Chu   +9 more
wiley   +1 more source

Molecular Weight Distribution of Polyvinyl Acetate and Polyvinyl Chloride

The Journal of the Society of Chemical Industry, Japan, 1967
市販ポリ酢酸ビニル,市販ポリ塩化ビニルおよび低温重合ポリ塩化ビニルの分子量分布を,ゲル・パーミエイションクロマトグラフィーとカラム分別で検討した。ポリ酢酸ビニル(粒状重合体,重合度1500)については,メチルエチルケトン-n-ヘキサン系でのカラム分別(40℃)の結果とGPCのそれとはよく一致した。また,溶液重合でえられた重合度700,1200,2000のものの重合度分布をGPCで検討した結果,重合度の高いものほど分布が広かった。一方,ポリ塩化ビニル(懸濁重合体,重合度1500)については,種々な条件でカラム分別を行なった結果,ポリマーを選択的に付着させ,かつ高温のシクロヘキサノン-エチレングリコール系での結果がGPCとほぼ一致した。また,重合度800,1000 ...
Saburoe YAMADA, Seiichiro KITAHARA, Yoshihiro HATTORI, Nobuo ANDO   +3 more
openaire   +2 more sources

Architecting highly hydratable polymer networks to tune the water state for solar water purification

Science Advances, 2019
Highly hydratable light-absorbing hydrogels with reduced water vaporization energy promote efficient solar water purification. Water purification by solar distillation is a promising technology to produce fresh water.
Xingyi Zhou, Fei Zhao, Youhong Guo, Brian T. Rosenberger, Guihua Yu   +4 more
semanticscholar   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Infrared Analysis of Polyvinyl Chloride-Polyvinyl Acetate Copolymer

The Journal of the Society of Chemical Industry, Japan, 1965
PVC-PVAc共重合物についてフィルム法,KBr錠剤法により共重合度の迅速定量法および状態分析の研究を行なった。状態分析としては, >CH2 の伸縮振動2913cm-1に対するPVCの1099cm-1の強度比が共重合と共に増大すること,およびPVCのアイソタクチックな非晶性バンドといわれる690cm-1の2913cm-1に対する強度比が共重合と共に減少するが,減少割合が混合物の場合に比して少ないことから,共重合物と混合物との識別が可能であることを見出した。更に前者の事実からPVCの1099cm-1の吸収は従来結晶化度と関係がないように思われているが,この吸収はむしろ非晶性バンドと考えられる。共重合度の定量法としては>CH2 の変角振動1425cm-1と>C=Oの伸縮振動1744cm-1 ...
Tsugio TAKEUCHI, Sadao MORI
openaire   +2 more sources

Dye‐Initiated Chirped Cholesteric Polymer Networks Exhibiting Broadband Dissipative Chiral Photonic Bands

Advanced Functional Materials, EarlyView.
A dye‐based photoinitiator acting as a structure‐directing element, guides the formation of a cholesteric polymer network that behaves as a chirped photonic structure with dissipative chiral coupling. Photopolymerization freezes a depth‐dependent helical pitch, broadening the Bragg resonance spectrum.
Alfredo Mazzulla, Pasquale Pagliusi, Gabriella Cipparrone   +2 more
wiley   +1 more source

Response of soil enzyme activities and bacterial communities to the accumulation of microplastics in an acid cropped soil.

Science of the Total Environment, 2019
The ecological stress of microplastics (MPs) contamination in agroecosystems raise worldwide concerns. However very few studies concentrated on the effects of MPs exposure on soil microbial community. The alterations of enzymatic activities and bacterial
Y. Fei, Shunyin Huang, Haibo Zhang, Yazhi Tong, Dishi Wen, Xiaoyu Xia, Han Wang, Yongming Luo, D. Barceló   +8 more
semanticscholar   +1 more source

PolyGraph – Flexible, Biocompatible & Electrically Optimized Graphene‐Polymer Composites for Next‐Generation Neural Interfaces

Advanced Healthcare Materials, EarlyView.
PolyGraph, a flexible graphene‐polycaprolactone nanocomposite, unites conductivity, biocompatibility, and processability for next‐generation neural interfaces. Fabricated into microneedle arrays with ultra‐flexible backings, PolyGraph enables bidirectional neuronal recording and stimulation in brain tissue, advancing brain‐computer interface (BCI) and ...
Jack Maughan, Ian Woods, Cian O'Connor, Pablo Quintana‐Sarti, Eoin Caffrey, Jose M. Munuera, Tian Carey, Adrian Dervan, Alejandro López Valdés, Omar Mamad, Maeve A. Caldwell, Fergal J. O'Brien, Jonathan N. Coleman   +12 more
wiley   +1 more source

The Mediterranean Plastic Soup: synthetic polymers in Mediterranean surface waters

Scientific Reports, 2016
The Mediterranean Sea has been recently proposed as one of the most impacted regions of the world with regards to microplastics, however the polymeric composition of these floating particles is still largely unknown.
Giuseppe Suaria, C. Avio, A. Mineo, G. Lattin, M. Magaldi, G. Belmonte, C. Moore, F. Regoli, S. Aliani   +8 more
semanticscholar   +1 more source