Results 31 to 40 of about 253 (134)

Caracterização de géis termorreversíveis de SEBS Characterization of thermoreversible gels of SEBS

Polímeros, 2000
RESUMO: Géis termorreversíveis preparados a partir de um copolímero em bloco de estireno - etileno/butileno - estireno (SEBS) e polietileno de baixa densidade dissolvidos em óleos minerais parafínicos e óleos polibutênicos, bem como em suas misturas ...
Antonio José F. Carvalho
doaj   +1 more source

Radiation‐Crosslinked PCL–TMPTA Composites via 3D Printing: Structure–Property Relationships and Shape Memory Performance

Polymer Engineering &Science, EarlyView.
3D printed shape memory PCL‐TMPTA through high energy gamma radiation modification. ABSTRACT Programmable materials that can reversibly transform between distinct shapes represent a promising technology for applications spanning biomedicine, robotics, and aerospace engineering. Although shape memory polymers offer promising stimuli‐responsive behavior,
Khushboo Varshney, R. K. Mondal, K. A. Dubey, Y. K. Bhardwaj   +3 more
wiley   +1 more source

Multilayer Cellulose Acetate–Viscose Films for Bio‐Based, Bio‐Degradable Packaging Applications

Packaging Technology and Science, EarlyView.
Cellulose acetate (CA) and cellulose foils stick together comprehensively after mild cellulose sodium hydroxide treatment and heated compression. For combined foils, water barrier properties correlate with CA thickness. Oxygen permeation suffers due to the sodium hydroxide pre‐treatment induced foil changes. The composite represents a biodegradable and
Florian Wurm, Anja Rosenzopf, Tung Pham, Thomas Bechtold   +3 more
wiley   +1 more source

Understanding the Effects of Processing Conditions on the Properties and Durability of Poly(Butylene Succinate)

Journal of Vinyl and Additive Technology, EarlyView.
Understanding the effects of processing conditions on the properties and durability of poly(butylene succinate). ABSTRACT This study investigates the effect of processing conditions on the structural, mechanical, and degradation behavior of poly(butylene succinate) (PBS), a promising biodegradable polyester.
Erika Alessia Di Liberto, Giulia Infurna, Nadka Tz. Dintcheva   +2 more
wiley   +1 more source

Polyesterase activity and thermostability of carboxylesterases from Thermoleophilum album YS‐3

The FEBS Journal, EarlyView.
Three novel α/β‐hydrolases from thermophilic bacterium Thermoleophilum album display carboxylesterase and polyesterase activity. These enzymes hydrolyse PET, PLA and PCL both at high and moderate temperatures. TA21 shows superior activity, efficiently converting MHET to terephthalic acid. Structural features underlying substrate binding highlight their
Tatyana N. Chernikova, Anna N. Khusnutdinova, Hairong Ma, Manuel Ferrer, Olga V. Golyshina, Alexander F. Yakunin, Peter N. Golyshin   +6 more
wiley   +1 more source

Material Limitations and Processing Challenges of Bio‐Based Thermoplastics: A Review

Journal of Applied Polymer Science, Volume 143, Issue 14, April 10, 2026.
This review highlights recent advances in bio‐based thermoplastic polymers (b‐bTPs), focusing on their composition, formulation challenges, and industrial applications. Key aspects include the use of additives and blends to improve performance, microcellular injection molding techniques, and the recyclability of b‐bTPs foams.
Catarina Faria, Daniel Reis, Diana Dias, Renato Reis, Sílvia Cruz   +4 more
wiley   +1 more source

Interlocking shish‐kebab morphology in polybutene‐1 [PDF]

Journal of Polymer Science Part B: Polymer Physics, 2002
AbstractThe aim of this research was to explore the effect of shear‐controlled orientation injection molding (SCORIM) on polybutene‐1 (PB‐1). This article describes the methods and processing conditions used for injection molding and discusses the properties of the moldings.
Kalay G., Kalay, C.R.
openaire   +3 more sources

Biodegradable, Breathable, and Skin‐Friendly Solution‐Blown Quercetin Nanofibers for Antiviral Nonwoven Filter

EcoMat, Volume 8, Issue 4, April 2026.
A nanofiber filter of quercetin and poly(ethylene oxide), produced through a solution‐blowing technique, serves as an eco‐friendly, high‐performance alternative for antiviral mask filters. The resulting material combines effective particle filtration with excellent breathability, robust mechanical strength, and rapid biodegradability, while also ...
Dogun Park, Joo‐Hyun Hong, Zijun Li, Yeongtak Son, Yea Jung Choi, Sullim Lee, Hyun‐Woo Kim, Daekyu Choi, Kiyong Kim, Yun Seok Joh, Do‐Kyun Kim, Hee Min Yoo, Ki Hyun Kim, Seongpil An   +13 more
wiley   +1 more source

Characterization of Microplastics in Human Gastric Cancer and Control Tissues and Analysis of Associated Genetic Features

Advanced Healthcare Materials, Volume 15, Issue 10, 13 March 2026.
This study characterizes the presence of microplastics in human normal gastric, para‐tumor, and gastric tumor tissue and confirms the association between microplastic exposure and lymph node metastasis in gastric cancer. This study explores the transcriptomic changes induced by microplastic exposure, laying the foundation for further investigation into
Liqiao Chen, Jialin Li, Yan Wu, Han Bao, Xuesong Yang, Guoqing Lv, Ke Ji, Ji Zhang, Xiaojiang Wu, Kai Zhou, Jieli Xu, Jiatian Tang, Xiyuan Han, Anqiang Wang   +13 more
wiley   +1 more source

The Stability of Viscosity of Polybutenes and Polybutene-Mineral Oil Mixtures

Journal of the Society of Materials Science, Japan, 1973
In order to obtain the data of the stability of high viscosity standard oils, the variation of viscosity with age was measured by means of a caoillary master viscometer for nolybutenes having viscosities of 55, 340, and 1010 poises at 25°C, and for polybutene-mineral oil mixtures having viscosities of 20, 100, and 540 poises at 25°C.The results ...
Kiyoshi YOSHIDA, Kimio KURASE, Yasumitsu KURANO, Masuhiro ONOYAMA   +3 more
openaire   +2 more sources