Results 71 to 80 of about 52,688 (156)

Phase transitions in ethylene oxide – methyl methacrylate block copolymers [PDF]

open access: yes, 1993
This thesis describes the methods of anionic polymerisation and characterisation of poly(ethylene oxide) - poly(methyl methacrylate) block copolymers. Several experimental techniques have been used to study the phase transitions in these block copolymers
Richardson, Paul H.
core  

PEO-Grafted Gold Nanopore: Grafting Density, Chain Length, and Curvature Effects

open access: yes
Polymer-grafted nanopores are used in several nanotechnological applications which demand control of structural and hydration properties of the grafted polymers.
Guang Chen (25155)   +1 more
core   +1 more source

Estabilização da tensão superficial de soluções de poli(oxietileno) (PEO) em presença e na ausência dos surfactantes dodecilsulfato de sódio (SDS) e colato de sódio (NaC) [PDF]

open access: yes, 2004
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.Os tempos de estabilização da tensão superficial de soluções contendo o polímero poli(oxietileno) (PEO), em água destilada e em solução ...
RAUPP, Grasiele
core  

Ett "EUropa" i avkoloniseringens väntrum

open access: yesSociologisk Forskning, 2003
Peo Hansen
doaj   +1 more source

Preparation and Wear Resistance of CNT-Doped PEO Coating on the TC4 Alloy

open access: yesInternational Journal of Photoenergy
Titanium alloy had the characteristics of high specific strength, low density, and good mechanical properties and biocompatibility, so it was a promising material for human body implantation. However, the wear resistance of titanium alloy was poor, which
Li Chenghai   +9 more
doaj   +1 more source

The Aggregation, Modulation of Aqueous PEO-PPO-PEO Block Copolymer Solution and Loaded Hydrophobic Drug Studied by Nuclear Magnetic Resonance Spectroscopy

open access: yes, 2008
聚氧乙烯–聚氧丙烯–聚氧乙烯(PEO–PPO–PEO)嵌段共聚物是一类非离子型高分子表面活性剂,广泛应用于药物载体、基因治疗、生物大分子分离、废水处理和介孔材料制备等领域。在前期工作中,作者所在实验室利用傅立叶变换红外(FTIR)和傅立叶变换拉曼(FT-Raman)光谱技术研究了PEOPPOPEO嵌段共聚物在水溶液中的聚集行为,发现嵌段共聚物的聚集与其不同链段局部微环境和构象的变化有关。基于上述认识,本文进一步采用核磁共振(NMR)波谱技术作为主要研究手段系统研究了PEO&
马俊鹤
core  

Peppermint (Mentha piperita L.) essential oil as a potent anti-inflammatory, wound healing and anti-nociceptive drug

open access: yesEuropean Journal of Biological Research, 2020
The present investigation was designed to study the chemical composition of Algerian peppermint essential oil (PEO) as well as the in vitro and in vivo anti-inflammatory, wound-healing and anti-nociceptive properties.
Sarah Kehili   +4 more
doaj  

PEO-Based Solid-State Electrolytes Reinforced by High Strength, Interconnected MOF Networks

open access: yes
Construction of polymer-based electrolytes with excellent mechanical properties and high ionic conductivity is highly desirable for solid-state lithium–metal batteries.
Zhengbang Wang (1631005)   +6 more
core   +1 more source

Association behavior between end-functionalized block copolymers PEO-PPO-PEO and poly(acrylic acid)

open access: yes, 2004
The end groups of ABA-triblock copolymers HO-PEO-PPO-PEO-OH, (PEO-poly(ethylene oxide), PPO-poly(propylene oxide)), have been modified with ammonia, ethylene diamine and linear polyethylenimine (LPEI) by substitution of the alpha,omega-ditosyl ester of ...
Goethals, Eric   +2 more
core   +1 more source

Metataxonomic and metabolomic profiling revealed Pinus koraiensis cone essential oil reduced methane emission through affecting ruminal microbial interactions and host-microbial metabolism

open access: yesAnimal Microbiome
Background Pinus koraiensis cone essential oil (PEO) contains functional compounds such as monoterpene hydrocarbons, and the administration of PEO reduced methane (CH4) emissions during growing phase of goats.
Y. Choi   +6 more
doaj   +1 more source

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