Results 11 to 20 of about 2,476 (207)

Nylons with Applications in Energy Generators, 3D Printing and Biomedicine [PDF]

Molecules
Linear polyamides, known as nylons, are a class of synthetic polymers with a wide range of applications due to their outstanding properties, such as chemical and thermal resistance or mechanical strength.
Matteo Arioli, Jordi Puiggalí, Lourdes Franco   +2 more
doaj   +4 more sources

Nylons with Highly-Bright and Ultralong Organic Room-Temperature Phosphorescence [PDF]

Nature Communications
Endowing the widely-used synthetic polymer nylon with high-performance organic room-temperature phosphorescence would produce advanced materials with a great potential for applications in daily life and industry. One key to achieving this goal is to find
Dian-Xue Ma, Zhong-Qiu Li, Kun Tang, Zhong-Liang Gong, Jiang-Yang Shao, Yu-Wu Zhong   +5 more
doaj   +3 more sources

Hydrogenative Depolymerization of Nylons [PDF]

Journal of the American Chemical Society, 2020
The widespread crisis of plastic pollution demands discovery of new and sustainable approaches to degrade robust plastics such as nylons. Using a green and sustainable approach based on hydrogenation, in the presence of a ruthenium pincer catalyst at 150 °C and 70 bar H2, we report here the first example of hydrogenative depolymerization of ...
Amit Kumar, Niklas von Wolff, Michael Rauch, You-Quan Zou, Guy Shmul, Yehoshoa Ben-David, Gregory Leitus, Liat Avram, David Milstein   +8 more
openaire   +7 more sources

Defined Nylon Oligomers Enable Mechanistic Insight Into Enzymatic Polyamide Depolymerization [PDF]

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
The remarkable progress in enzymatic polyester depolymerization has demonstrated the potential of biocatalysis for sustainable polymer recycling. In contrast, enzymatic polyamide (PA) degradation remains poorly understood, largely due to the lack of defined and accessible model substrates.
Sukmanita Dewi, Hendrik Puetz, Ulrich Schwaneberg, Laura Hartmann   +3 more
wiley   +2 more sources

Thermodynamic characteristics of the aliphatic polyamide crystal structures: Enhancement of nylon 66α, 610α and 77γ polymers [PDF]

Heliyon, 2023
Despite the polymer industry's reliance on nylon polymers, numerous questions remain about their crystal structures, modeling, and other features. This work discusses the thermodynamic properties and molecular modeling of a polyamides nylon 66α, 610α ...
Ali F. Al-Shawabkeh
doaj   +2 more sources

Dissolution and regeneration of nylons utilizing superbase-acid conjugate ionic liquids. [PDF]

RSC Adv
Synthetic polyamides (nylons) are widely used in our daily life and in technical applications due to the good mechanical properties, as well as good resistance towards chemicals and sunlight. The recycling of nylons is challenging even as pure materials,
Gazagnaire E, Bardadym Y, Hietala S, Hirvonen SP, Aseyev V, Kilpeläinen I, Todorov AR.   +6 more
europepmc   +2 more sources

Quantitative nylon monomerization by the combination of chemical pretreatment and enzymatic hydrolysis using nylon hydrolases. [PDF]

PLoS ONE
Nylons, derived from fossil fuels, are widely used for their toughness and flexibility, but they pose environmental concerns due to their low biodegradability.
Yuki Shiraishi, Dai-Ichiro Kato, Kaito Miyazaki, Maina Yonemura, Yoko Furuno, Risa Yokoyama, Yukiko Yokogawa, Sho Nonaka, Yoshiro Kaneko, Keigo Ebata, Yuichiro Himeda, Seiji Negoro   +11 more
doaj   +2 more sources

A sustainable process to 100% bio-based nylons integrated chemical and biological conversion of lignocellulose

Green Energy & Environment
Considerable progress has been made in recent years to the development of sustainable polymers from bio-based feedstocks. In this study, 100% bio-based nylons were prepared via an integrated chemical and biological process from lignocellulose.
Ruijia Hu, Ming Li, Tao Shen, Xin Wang, Zhuohua Sun, Xinning Bao, Kequan Chen, Kai Guo, Lei Ji, Hanjie Ying, Pingkai Ouyang, Chenjie Zhu   +11 more
doaj   +2 more sources

Discovery and characterization of substrate- and product-selective nylon hydrolases [PDF]

Structural Dynamics
Nylons are common industrial polyamides with few effective recycling options. As an alternative to mechanical or chemical recycling, enzymes could provide a selective and energy-efficient route to deconstruct nylons from mixed waste.
Nikolas Capra, Liangyu Qian, Célestin Bourgery, John F Cahill, Alexis Williams, Dana Carper, Jerry Parks, Isaiah T Dishner, Jeffrey C Foster, Delyana Vasileva, Serena Chen, Joshua Michener, Flora Meilleur   +12 more
doaj   +2 more sources

Copolyamides of nylon‐4,6 and nylon‐4,T [PDF]

Journal of Polymer Science Part A: Polymer Chemistry, 1989
AbstractCopolyamides of nylon‐4,6 and nylon‐4,T were prepared by a two‐step method: (1) a prepolymerization in an autoclave (40 min at 210°C) and (2) a postcondensation in the solid state (4 h, 260°C). On these materials was studied the melting behavior with DSC, the crystalline structure with WAXS, the water absorption, and the mechanical properties ...
Gaymans, R.J., Aalto, S., Maurer, F.H.J.
openaire   +3 more sources