Results 41 to 50 of about 27,543,308 (166)

Enhanced Formation of Dicarboxylic Acids in the Catalytic Oxidation of Polyethylene With O2 and NOx

Angewandte Chemie, Volume 138, Issue 34, 17 August 2026.
The oxidation of polyethylene in the presence of a mixture of O2 and NOx and with Cu2+/V5+ as catalyst yields ∼51 mol% diacids, while retaining ∼80 mol% of the carbon in the oil fraction. The developed method is robust and tolerates several polymer types as well as impurities.
Tom J. Smak, Rinke Altink, Ina Vollmer, Bert M. Weckhuysen   +3 more
wiley   +2 more sources

Production of Blend Sof Isotactic Polybutene -1 with Selected Polymers

, 2020
Tato bakalářská práce se zabývá chováním isotaktického polybutenu-1 s vybranými polymerními příměsemi, které ovlivňují fázovou transformaci nestabilní fáze II na stabilní fázi I.
Girášek, Matěj
core   +1 more source

Polybutylene Adipate Terephthalate Meltblown Nonwoven With Annular Meltblown Die: Processability and Structure–Property Relationship

Polymer Engineering &Science, EarlyView.
Schematics of meltblown fiber formation with key processing parameters and their influences on processing window and nonwoven barrier properties. ABSTRACT This study evaluates the meltblown processing behavior of Polybutylene Adipate Terephthalate (PBAT), one of promising biodegradable polymers, and investigates the complex processing–structure ...
Eunkyoung Shim, Mehmet Dasdemir, Natalie Young, Behnam Pourdeyhimi   +3 more
wiley   +1 more source

Structure of blown films of polyethylene/polybutene‐1 blends [PDF]

Polymer Engineering & Science, 2009
Abstract The structure of blown films of blends of low‐density polyethylene (PE‐LD) and isotactic polybutene‐1 (iPB‐1) with different content of iPB‐1 was investigated using wide‐ and small‐angle X‐ray scattering (WAXS and SAXS), transmission electron microscopy (TEM), and polarizing optical microscopy (POM). TEM proves formation of a
Michael Nase, Sergio S. Funari, Goerg H. Michler, Beate Langer, Wolfgang Grellmann, René Androsch   +5 more
openaire   +2 more sources

Effect of Crystal Polymorphism on Elastic Modulus and Hardness of Poly(Butylene 2,6‐Naphthalate) (PBN)

Polymer Engineering &Science, EarlyView.
The research provides insight into the mechanical behavior of the high‐performance polyester Poly(Butylene 2,6‐Naphthalate) containing different crystal polymorphs, adjustable by the conditions of melt‐crystallization. ABSTRACT The modulus of elasticity and hardness of poly(butylene 2,6‐naphthalate) (PBN) were investigated at different length scales ...
Mengxue Du, Thomas Chudoba, Christina Wüstefeld, Ralf Lach, Katalee Jariyavidyanont, René Androsch   +5 more
wiley   +1 more source

Recent Advances in Microalgae‐Based Functional Coatings and Films for Food Packaging Applications: Opportunities and Challenges

Packaging Technology and Science, EarlyView.
Microalgae‐derived bioactive compounds exhibit strong antioxidant and antimicrobial properties and can be incorporated into edible coatings to enhance food quality and shelf life. These materials offer sustainable, biodegradable alternatives to conventional packaging, with promising potential for future scalable food applications.
Madhu Gaidher, Nidhi Bhardwaj, Sachin Sharma, Akanksha Singh, Kanika Dulta, P. K. Chauhan, Pooja Yadav, Hira Iqbal, Helen Onyeaka, Soumya Ghosh   +9 more
wiley   +1 more source

Printing to Fight Antimicrobial Resistance Through Nano/Microstructured Platforms

The Chemical Record, EarlyView.
Additive manufacturing enables the rational design of structured antimicrobial platforms across multiple length scales, from nanofibrous scaffolds and droplet microreactors to 3D and 4D printed constructs. By engineering confinement, interfacial chemistry, and stimuli‐responsive release, these systems exert localized action through complementary ...
Giorgia Puleo, Silvia Orecchio, Dario Savoca, Claudia Pellerito, Vittorio Ferrara, Vincenzo Piscopo, Sebastiano Alberto Fortuna, Alessandra Giardina, Bruno Pignataro, Paola Costanzo, Floriana Campanile, Giuseppe Arrabito   +11 more
wiley   +1 more source

Thermal Behavior of Degraded Polybutene-1

, 2020
Tato diplomová práce se zabývá teplotním chováním degradovaného polybutenu-1, který byl vystaven jak venkovnímu stárnutí po dobu několika měsíců, tak urychlenému UV ozařování, a pomocí diferenciální skenovací kalorimetrie byly analyzovány změny v ...
Foltýn, Jakub
core   +1 more source

Cooling Holes in Polymer Spur Gears: A Critical Analysis of Heat Dissipation Benefits and Mesh Stiffness Penalties

Journal of Applied Polymer Science, Volume 143, Issue 38, October 10, 2026.
Cooling holes provide a simple passive cooling strategy for polymer spur gears, reducing maximum operating temperature by up to 9.39% while introducing a measurable gear mesh stiffness penalty. A validated response‐surface model reveals how hole size and location govern this thermal–mechanical trade‐off, enabling design optimization for thermally and ...
Abderrahim Baccar, Ahmed Samet, Ahmed Hammami, Nuno Dourado, Ali Akrout, Mohamed Haddar   +5 more
wiley   +1 more source

Impact of Chitosan Incorporation on PBAT Composite: Thermal, Viscoelastic, Mechanical, and Morphological Properties

Journal of Applied Polymer Science, Volume 143, Issue 36, September 20, 2026.
The abstract explains the impact of various concentrations of chitosan on PBAT composite. Indeed, the composite is produced at increasing concentrations of chitosan (10%, 20%, and 30%). The decrease in the tensile strength with increased conc. of chitosan was recorded. Furthermore, the same impact was recorded for TGA analysis.
Siti Noorbaini Sarmin, Zoheb Karim, Mohammad Jawaid, Ahmad Safwan Ismail, Muhamad Haikal Hamdan   +4 more
wiley   +1 more source