Determinação de propriedades superficiais da argila montmorilonita em suspensão aquosa de PVA com diferentes graus de hidrolise [PDF]
, 2006 TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.Neste trabalho foram estudados sistemas que usam a combinação polímero-argila e suas propriedades de viscosidade, tensão superficial e ...
SILVA JÚNIOR, Wilson José Pinto da
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Programming of Complex Magnetic Profiles Enforced by 4D Printed Magnetic LCE Actuators
Advanced Materials, EarlyView.A 4D printing‐enabled magnetic programming strategy is introduced in which thermally actuated liquid crystal elastomers are magnetized in their target shape to encode complex three‐dimensional magnetic profiles. The resulting actuators achieve multistate shape morphing and programmable locomotion under low magnetic fields, without requiring specialized
Erick R. Espíndola‐Pérez +5 more
wiley +1 more source
Sonochemical synthesis and characterization of Ag2S/PVA and CuS/PVA nanocomposite
Ultrasonics Sonochemistry, 2002 Abstract Nanospherical Ag 2 S/PVA and nanoneedles of CuS/PVA composite have been prepared by sonochemical irradiation of a 10% ethylenediamine–water solution of elemental sulfur, silver nitrate, or copper acetate in the presence of polyvinyl alcohol. The particle sizes are 25 and 225 nm for Ag 2 S/PVA and CuS/PVA nanocomposites, respectively.
R.Vijaya Kumar +4 more
openaire +1 more source
Can Elastomers Combine Stiffness, Toughness and Fatigue Resistance?
Advanced Materials, EarlyView.This review studies how the molecular and macroscopic architecture of elastomers influence their mechanical properties including: stiffness, stretchability, toughness, fatigue resistance, and damping behavior. By linking the structure to performance, it proposes design principles for advanced elastomeric systems that combine mechanical properties ...
Eva Baur, Esther Amstad
wiley +1 more source
Sorção de compostos policíclicos aromáticos por microesferas de quitosana - PVA contendo ftalocianina de cobre (II) tetrasulfonada / [PDF]
, 2000 Tese (Doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.A ftalocianina de cobre tetrasulfonada (FCuT) foi incorporada a blenda polimérica quitosana/ álcool polivinílico (QTS/PVA) e microesferas foram produzidas
Stolberg, Joni
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Investigation of silica - PVA xerogel microstructure evolution during thermal treatment by SANS experiment [PDF]
, 2004 The purpose of the study was to investigate the appearance of certain microstructures developing in the SiO2/PVA nanocomposite xerogels at different temperatures by small-angle neutron scattering (SANS). The samples were prepared by the alcoxide route of
Savii, Cecilia +21 more
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True Closed‐Loop Recyclable Hydrogels Enabled by Imine Boronic Ester Crosslinking
Advanced Materials, EarlyView.Subtle molecular differences in imine boronic ester crosslinkers profoundly influence hydrogel properties. 2‐formylphenylboronic acid crosslinkers form previously undisclosed 3‐amino‐benzoxaborole heterocycles, enhancing elasticity despite lower crosslinking density compared to their 4‐formylphenylboronic acid counterparts.
Jenna A. King +5 more
wiley +1 more source
Electrospun PVA matrices and self-assembling peptides for neural tissue engineering
, 2022 openI danni al sistema nervoso, e in particolare a quello periferico, sono molto comuni e dovuti alle più svariate cause, tra cui incidenti stradali, piccole lesioni o tagli.
ZENI, ELENA
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, 2020 By adopting an adhesive polyvinyl alcohol (PVA) to encapsulate fluorescent carbon dots (CDs), a novel approach to prolong foliar fluorescent CD retention for enhancing lettuce photosynthesis was developed.
Jianle Zhuang (1952044) +9 more
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A Wireless, Passive Multimodal Wearable Sensor With Decoupled Sensing Capabilities
Advanced Materials, EarlyView.A wireless passive multimodal electronic skin is presented for the simultaneous perception of pressure, humidity, and odor through a frequency‐divided LC resonator array. The decoupled sensing architecture suppresses cross‐interference and enables independent signal readout under superimposed stimuli while maintaining high stability.
Wenjiang Han +8 more
wiley +1 more source