Article
Biochemistry & Molecular Biology
Guoyan Ma, Le Wang, Xiaorong Wang, Chengjun Wang, Xi Li, Lu Li, Hongfei Ma
Summary: A series of vinyl versatate (VV10) modified poly(vinyl acetate) adhesive (HVPVAc) were prepared using soap-free emulsion polymerization. ATR-FTIR spectroscopy was used to characterize the structure of the modified poly(vinyl acetate) latex. The results showed that the mechanical properties and viscosity of the modified poly(vinyl acetate) improved with the increase of VV10 content, while the particle size and breaking elongation also increased.
Article
Forestry
Zuzanna Goral, Joanna Mastalska-Poplawska, Piotr Izak, Pawel Rutkowski, Joanna Gnyla, Tomasz M. Majka, Krzysztof Pielichowski
Summary: A fire retardant composite adhesive for bonding wood and wood-based elements was developed and characterized, with ceramic fillers and fire retardants significantly improving the adhesive properties. The best adhesive performance was achieved with ceramic additives supported by melamine phosphate.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2021)
Article
Polymer Science
Hamid Reza Hedayati, Manounchehr Khorasani, Mostafa Ahmadi, Nicholas Ballard
Summary: In this study, well-defined and linear PVAc was synthesized using RAFT polymerization method, overcoming the difficulties in controlling molecular weight distribution during the hydrolysis of PVAc. This offers a potential route to the production of PVAc and PVA products with uniform properties.
Article
Biochemistry & Molecular Biology
Antonio C. S. dos Santos, Humberto M. Henrique, Vicelma L. Cardoso, Miria H. M. Reis
Summary: In this study, researchers proposed the use of lignin and poly(vinyl acetate) as biocoating materials for slow release urea fertilizer, which improved film characteristics and increased nitrogen release time compared to pure polymers. The results suggest that a blend of 25 wt% lignin and 75 wt% PVAc is a suitable biocoating material for producing slow release fertilizers.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Thermodynamics
Yi Li, Lijia Zhao, Changyu Han, Liguang Xiao, Yancun Yu, Guangbin Zhou, Mingzhi Xu
Summary: The study shows that the addition of low-Mw PVAc can accelerate the crystallization of PLLA/PDLA components, while high-Mw PVAc can inhibit crystallization; blending with PVAc enhances the formation of SCs, with the best effect seen with low-Mw PVAc; only SCs are obtained in blends with 30% low-Mw PVAc, improving the thermomechanical properties.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Chemistry, Physical
Yi Li, Changyu Han, Liguang Xiao, Yancun Yu, Guangbin Zhou, Mingzhi Xu
Summary: The addition of PVAc in PBS/PVAc blends was found to accelerate the crystallization rate of PBS but decrease the degree of crystallinity, improve the rheological properties of PBS, and enhance the stiffness, strength, and toughness simultaneously. This synergistic improvement in crystallization, rheological, and mechanical properties may be crucial for widening the application of PBS.
COLLOID AND POLYMER SCIENCE
(2021)
Article
Chemistry, Physical
Nazym Kassenova, Sandugash Kalybekkyzy, Memet Vezir Kahraman, Almagul Mentbayeva, Zhumabay Bakenov
Summary: The novel dual crosslinked nanofibrous membranes demonstrated superior ionic conductivity and excellent mechanical and thermal stability in lithium-ion batteries, showing great potential for application in flexible and safe Li-ion and Li-metal batteries.
JOURNAL OF POWER SOURCES
(2022)
Article
Biochemistry & Molecular Biology
Yi Li, Shuangna Yao, Changyu Han, Yancun Yu, Liguang Xiao
Summary: Three polymers P34HB, PLA, and PVAc were melt compounded to form a ternary blend with balanced properties, with PVAc showing full miscibility with PLA and P34HB. PVAc selectively dispersed in the PLA phase at low content and gradually diffused into the P34HB phase with increasing concentration. Scanning electron microscopy revealed a phase-separated morphology in all blends, with dispersed phase diameters increasing with PVAc concentration.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Physical
Seong Baek Yang, Dae Won Jeong, Jungeon Lee, Sabina Yeasmin, Chang-Kil Kim, Jeong Hyun Yeum
Summary: In this study, PVA/P(MMA-MAA) blend films were prepared for the first time using the saponification method in a heterogeneous medium. The conversion of PVAc/PMMA into PVA/P(MMA-MAA) films was confirmed by analyzing surface morphology and characteristics, as well as the improvement in thermal properties. The results suggest that blend films based on the hydrophilic/hydrophobic strategy have potential as promising medical materials.
Article
Materials Science, Multidisciplinary
Chenglin Li, Qingyuan Du, Changhao Liu, Yi An, Chunping Fang, Daming Wu, Jingyao Sun
Summary: In this study, a carbon nanotubes (CNTs)-cellulose nanocrystals (CNCs)/ethylene-vinyl acetate (EVA) composite was prepared using an ultrasonic-assisted forced infiltration (UAFI) method. The composite exhibited excellent bonding properties, electrical conductivity, and thermal conductivity. By adjusting the mass ratio of CNTs to CNCs, different electrical and thermal conductivity properties can be achieved. The prepared EVA composite also showed thermal stability, mechanical properties, thermal performance, and electromagnetic shielding, making it suitable for interface bonding material (IBM) applications.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Applied
Emine Merve Canga, Fahriye Ceyda Dudak
Summary: Novel cellulose acetate (CA) and poly(vinyl alcohol) (PVA) hybrid fibers were fabricated via angled dual-nozzle electrospinning for encapsulating probiotics with enhanced gastrointestinal stability. CA improved bacterial stability under gastric conditions while PVA provided protection during the electrospinning process. Encapsulated Escherichia coli strain Nissle 1917 (EcN) cells showed increased viability compared to free cells, demonstrating the potential of multi-nozzle electrospinning for probiotic encapsulation.
CARBOHYDRATE POLYMERS
(2021)
Review
Polymer Science
Morana Novak, Bronwyn Ormsby
Summary: This article summarizes the available information on poly(vinyl acetate) paints from both scientific and conservation practice perspectives. It provides an overview of the development, formulation differences, ageing behavior, and recent scientific research on poly(vinyl acetate) paints.
Article
Polymer Science
Yujie Jin, Changyu Han, Yi Li, Hongda Cheng, Dongdong Li, Huan Wang
Summary: In this study, PVAc was introduced into PHBH/PPC blends to improve the plasticity and toughness of PHBH. The PHBH/PPC/10PVAc blend exhibited significantly enhanced toughness and strength compared to the PHBH/PPC blend.
Article
Chemistry, Applied
Xi Chen, Tetsushi Taguchi
Summary: This study successfully fabricated an inclusion complex film containing β-cyclodextrin and nonanyl group-modified PVA, showing good water vapor transmission rate and ion permeability, making it suitable for adhesive use in skin contact medical devices.
CARBOHYDRATE POLYMERS
(2021)
Article
Polymer Science
Chujuan Huang, Toyoko Suzuki, Hideto Minami
Summary: In this study, micrometer-sized block copolymer particles were successfully synthesized using iodine transfer polymerization as a first attempt. Methyl methacrylate (MMA) and vinyl acetate (VAc) were used as the hydrophilic monomers in a microsuspension system. The resulting poly(methyl methacrylate)-block-poly(vinyl acetate) (PMMA-b-PVAc) particles exhibited the desired molecular weight and relatively narrow molecular weight distribution, despite the low degree of polymerization of the PVAc block. The hydrolysis of these particles resulted in three different morphologies, and the formation mechanism of each morphology was proposed, attributing it to the interaction between the iodic ions generated from the degradation of iodine end groups and the elongated poly(vinyl alcohol) (PVA) segments derived from PVAc.
Article
Biochemical Research Methods
Laura Degani, Chiara Riedo, Oscar Chiantore
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2015)
Article
Archaeology
Lisa Bianco, Massimiliano Avalle, Alessandro Scattina, Paola Croveri, Cesare Pagliero, Oscar Chiantore
JOURNAL OF CULTURAL HERITAGE
(2015)
Article
Archaeology
Romina Rezza, Anna Brunetto, Paola Buscaglia, Oscar Chiantore, Tommaso Poli, Antonio Rava, Maria Teresa Roberto, Francesca Zenucchini
STUDIES IN CONSERVATION
(2015)
Article
Humanities, Multidisciplinary
Chiara Riedo, Fabrizio Caldera, Tommaso Poli, Oscar Chiantore
Article
Engineering, Chemical
Dafne Cimino, Oscar Chiantore, E. Rene de la Rie, Christofer W. McGlinchey, Rebecca Ploeger, Tommaso Poli, Johannes A. Poulis
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2016)
Article
Chemistry, Analytical
Chiara Riedo, Dominique Scalarone, Oscar Chiantore
ANALYTICAL METHODS
(2013)
Article
Biochemical Research Methods
Laura Degani, Chiara Riedo, Monica Gulmini, Oscar Chiantore
Article
Thermodynamics
Valentina Pintus, Rebecca Ploeger, Oscar Chiantore, Shuya Wei, Manfred Schreiner
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2013)
Article
Polymer Science
Tommaso Poli, Anna Piccirillo, Alessia Zoccali, Claudia Conti, Marco Nervo, Oscar Chiantore
POLYMER DEGRADATION AND STABILITY
(2014)
Article
Archaeology
Oscar Chiantore, Chiara Riedo, Tommaso Poli, Giancarlo Cotrufo, Peter Hohenstatt
STUDIES IN CONSERVATION
(2018)
Review
Environmental Sciences
Oscar Chiantore, Tommaso Poli
Summary: The control of air quality within museum showcases is crucial for the conservation of displayed artifacts, as volatile substances can lead to degradation. This review explores the role of materials used in museum display cases as potential sources of pollutants and volatile compounds, and discusses methods for assessing suitability and monitoring air quality.
Article
Materials Science, Multidisciplinary
Tommaso Poli, Oscar Chiantore, Eliano Diana, Anna Piccirillo
Summary: The formation of metal soaps in oil paintings is a common issue that can alter the performance and appearance of the paint film, complicating cleaning methods. Studies have shown that acids from drying oil and natural resins can react with pigments to form carboxylate salts, impacting the behavior of the paint film. Additionally, surface varnishes containing terpenic acids may play a significant role in the formation and reactivity of carboxylates in paintings.
Article
Humanities, Multidisciplinary
Chiara Riedo, Giulia Rollo, Oscar Chiantore, Dominique Scalarone
Summary: An analytical method based on ATR-FTIR and Py-GC/MS was developed to identify PVA-borax gel residues. The results showed that clearing the surfaces with organic solvents is necessary to ensure a good removal of gel residues. Py-GC/MS analyses in SIM mode are more sensitive and selective for detecting gel residues.
Article
Humanities, Multidisciplinary
Antonio Rava, Thierry Radelet, Annamaria Giovagnoli, Tommaso Poli, Oscar Chiantore, Anna Piccirillo
JOURNAL OF THE AMERICAN INSTITUTE FOR CONSERVATION
(2013)
Article
Polymer Science
Tetsu Sato, Mariko Takahashi, Takeshi Saito, Masahito Toyonaga, Itsuo Tanuma, Rie Yamada, Satoru Hosoda
Summary: An automatic evaluation system for photooxidation has been developed and successfully applied to assess the photo-OIT of LDPE samples containing photooxidation stabilizers. The system allows independent setting of various measurement conditions and provides detailed information on the photooxidation process.
POLYMER DEGRADATION AND STABILITY
(2024)
Article
Polymer Science
Zongzheng Zuo, Shuxue Zhou
Summary: In this study, three fluoroalkyl trimethoxysilane (FATMS) additives with different chain lengths were incorporated into a two-component polyurethane clearcoat to improve its hydrophobic durability. The coatings modified with FATMS maintained their surface hydrophobicity under various conditions, but quickly lost it when exposed to both UV irradiation and/or high temperature with water. The results suggest that the FATMS route is more suitable for indoor applications at room temperature.
POLYMER DEGRADATION AND STABILITY
(2024)
Article
Polymer Science
Song Li, Feng Zhao, Xueya Wang, Zhihua Liu, Jingze Guo, Yutong Li, Shuangmei Tan, Zhenxiang Xin, Shuai Zhao, Lin Li
Summary: Green flame retardants have garnered attention for their environmental friendliness, but current options fall short in achieving high flame retardancy for flammable polymers and maintaining environmental protection. This study takes a two-pronged approach to address flame retardants and the flame-retardant process. An eco-friendly bio-based synergistic flame retardant (PAU), synthesized using phytic acid (PA) and urea (U), is used to create a flame retardant coating that can be directly applied to any surface shape using polydopamine as an adhesive. The resulting EPS-PAU exhibits excellent flame retardancy, smoke suppression, and light weight while only slightly increasing the density.
POLYMER DEGRADATION AND STABILITY
(2024)
