Results 131 to 140 of about 27,544 (317)

Pretreatment Effects of Conventional and Reactive Extrusion on LLDPE Waste Pyrolysis

Polymer Engineering &Science, EarlyView.
Schematic overview of the pyrolysis study using original and pretreated LLDPE waste samples. Pretreatment was performed via twin‐screw extrusion at 450°C: without additives (REX), with peroxide (REX‐RO2), or with polypropylene (REX–PP). All four samples underwent pyrolysis at 450°C–475°C for 15–45 min.
Yasmin Fialho Siqueira, Débora M. V. Miranda, Larissa L. A. Carvalho, Natasha K. Sitton, Ana Paula de Azeredo, Regina F. Nonemacher, Raquel S. Mauler, Luiz Eduardo P. Borges, José Carlos Pinto   +8 more
wiley   +1 more source

Sustainable Polymer Biocomposites for Food Packaging: Green Nanotechnology, Circular Plastic Upcycling and Smart Functional Materials

Packaging Technology and Science, EarlyView.
Graphical abstract showing the development of biodegradable polymer biocomposites reinforced with natural fibres, green nanoparticles and waste‐plastic upcycling pathways toward sustainable smart food packaging materials ABSTRACT The fundamental hypothesis behind this review is that the combination of biodegradable polymer‐based biocomposites, which ...
Chandra Sekhar Espenti, Jaewoong Lee
wiley   +1 more source

Copper‐Zinc Bimetallic Two‐Dimensional Conjugated Coordination Polymers for Highly‐Selective Electrochemical CO2 Reduction to Ethanol

Small, EarlyView.
Two‐dimensional conjugated coordination polymers featuring spatially separated Cu/Zn–S4 bi‐active sites enable the selective electrochemical conversion of CO2 to ethanol via stabilized C2 intermediates, achieving a Faradaic efficiency of 92.3% at a current density exceeding 120 mA cm−2 and an energy cost of 56.6 GJ per ton.
Rashid Iqbal, Tianchun Li, Zhao Yan, Geping Zhang, Fengxiang Zhao, Huan Huang, Hua Wang, Yu Jing, Jingcheng Hao, Renhao Dong   +9 more
wiley   +1 more source

Liquid Crystal Polymers as Intrinsically Magnetic and Programmable Soft Materials for Microrobotics

Small, EarlyView.
Liquid crystal polymers (LCPs) are proposed as intrinsically magnetic, programmable, soft materials for microrobotics. Magnetic torque‐driven manipulation of LCP microobjects is achieved and characterized in terms of the step‐out frequency, reaching ∼0.6 Hz in a ∼250 mT magnetic field. The orientation of LCP microobjects in the magnetic field and their
Alexandra Gruzdenko, Ignacio Becerra Osorio, Max de Sain, Albert P. H. J. Schenning, Jaap M. J. den Toonder, Michael G. Debije   +5 more
wiley   +1 more source

Visible‐light‐promoted catalyst‐free benzylic C‐H oxidation using molecular oxygen as a green oxidant

Smart Molecules, EarlyView.
A green and simple photo‐oxygenation of benzylic C‐H bond with molecular oxygen was developed for the preparation of a series of carbonyl compounds. The straightforward C‐H carbonylation strategy features catalyst‐ and additive‐free reaction conditions, only oxygen as a green oxidant, broad scope and scalable, and the simple‐operation nature.
Jianing Li, Suwen Wang, Huinan Sun, Zhunchao Liu, Xiangmin Tian, Qilei Liu, Qingwei Meng   +6 more
wiley   +1 more source

Processing Stabilization of Polyolefin Recyclates Using Alditols in Combination With α‐Tocopherol: A Sustainable Alternative to Phosphites

Journal of Vinyl and Additive Technology, EarlyView.
A novel bio‐based stabilizer system significantly improves the quality of polyolefin recyclates during multiple recycling cycles. ABSTRACT This study introduces a novel bio‐based stabilizer system for polyolefin recyclates that combines alditols with small amounts of α‐tocopherol as a sustainable alternative to conventional phosphite additives. The aim
Kim Hao Ng, Jan‐Hendrik Arndt, Elke Metzsch‐Zilligen, Rudolf Pfaendner   +3 more
wiley   +1 more source

Thermal decomposition characteristics of BHT and its peroxide (BHTOOH)

BMC Chemistry
2,6-Di-tert-butyl-4-methylphenol (BHT) is an excellent antioxidant that is easily oxidized to 2,6-di-tert-butyl-4-hydroperoxyl-4-methyl-2,5-cyclohexadienone (BHTOOH).
Suyi Dai, Min Liang, Haijun Cheng, Chang Yu, Weiguang Li, Fang Lai, Li Ma, Xiongmin Liu   +7 more
doaj   +1 more source

Coarse‐Grained Molecular Dynamics Simulations of Oxidative Aging and Stabilization in Polymer Melts With Primary Antioxidants: Effects of Antioxidant Concentration and Molecular Architecture

Journal of Vinyl and Additive Technology, EarlyView.
Antioxidant type and concentration govern both the rate and spatial heterogeneity of oxidative aging in polymer melts. Higher antioxidant‐group concentration prolongs the induction and reaction time scales, while the BHT‐type antioxidant provides stronger and more homogeneous stabilization than the Irganox1010‐type antioxidant because of its more ...
Takato Ishida, Emmanuel Richaud
wiley   +1 more source

The Evolution of Sesame Seed Allergy Over Time

Allergy, EarlyView.
This study analyzes the natural history of sesame over time and the changes in biomarkers between sesame allergic and sesame sensitised but tolerant children. The period prevalence of sesame allergy increased from 0.5% between 12 and 36 m to 1.5% between 7 and 12 y children in the EAT‐On study with 10 children developing new sesame allergy. Sesame‐sIgE
Ru‐Xin Foong, George Du Toit, Henry T. Bahnson, Ronald van Ree, Suzana Radulovic, Serge A. Versteeg, Joanna Craven, Matthew Kwok, Zainab Jama, Helen A. Brough, Kirsty Logan, Michael R. Perkin, Carsten Flohr, Alexandra F. Santos, Gideon Lack   +14 more
wiley   +1 more source

Butylated hydroxytoluene(BHT) 과 Butylated Hydroxyanisole (BHA) 가 쥐의 간 배설 기능에 미치는 영향에 관한 연구 [PDF]

, 1981
학위논문(석사) - 한국과학기술원 : 생물공학과, 1981.2, [ vii, 71 p. ]Effects of butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA), which are widely used as food antioxidants, on plasma disappearance and biliary excretion of organic acid BSP, organic base
Choe, Suck-Young, 최석영
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