Results 51 to 60 of about 2,853 (179)
THE EFFECT OF ε-CAPROLACTAM ON RUBBER
NIPPON GOMU KYOKAISHI, 1966 カルボキシリックポリブタジエンゴムにe-カプロラクタムをグラフトさす反応において, リン酸を触媒として, ゴムへのe-カブロラクタムの添加量の影響, 加熱温度と時間の影響を検討した.その結果, 混入するe-カブロラクタム量が増加するにつれて, ゴムへの結合量は直線的に増加した.また混入e-カプロラクタム量が40～50部程度の時に良好な物性がえられた.ゴムに結合するe-カプロラクタム量は高温, 長時間加熱するほど増加した.しかし物性面にはゴムの過度のゲル化によると思われる影響が現われ, あまり好ましくないことがわかった.さらに, ゴム用補強剤として代表的なカーボンブラックの影響についても検討した結果, 酸性カーボンよりも塩基性カーボンの方が補強効果が大であった.
S. Mizunuma +4 more
openaire +4 more sources
Chemoselective Sequential Polymerization: An Approach Toward Mixed Plastic Waste Recycling
Advanced Functional Materials, Volume 36, Issue 38, 11 May 2026.Inspired by biological protein metabolism, this study demonstrates the closed‐loop recycling of mixed synthetic polymers via ring‐closing depolymerization followed by a chemoselective sequential polymerizations process. The approach recovers pure polymers from mixed feedstocks, even in multilayer formats, highlighting a promising strategy to overcome a
Gadi Slor +5 more
wiley +1 more source
SI‐bioATRP in Mesoporous Silica for Size‐Exclusion Driven Local Polymer Placement
Advanced Functional Materials, Volume 36, Issue 38, 11 May 2026.An enzyme‐catalyzed surface‐initiated atom transfer radical polymerization (SI‐bioATRP) of an anionic monomer within mesoporous silica particles, using hemoglobin as a catalyst, allows for controlling the location of the formed polymer via size‐exclusion effects between the nanopores and the biomacromolecules, thereby opening routes to functional ...
Oleksandr Wondra +8 more
wiley +1 more source
Metabolic Engineering Communications, 2019 Pseudomonas putida is a promising bacterial chassis for metabolic engineering given its ability to metabolize a wide array of carbon sources, especially aromatic compounds derived from lignin.
Mitchell G. Thompson +13 more
doaj +1 more source
Hydrotreatment of Nylon 66 and Amide Model Compounds Over Sulfided NiMo Catalysts
ChemCatChem, Volume 18, Issue 9, 14 May 2026.Hydrotreatment of nylon‐66 and the model amide N,N‐dibutylhexanediamide over sulfided NiMo/Al2O3 reveals competing hydrodenitrogenation and hydrodeoxygenation pathways, without formation of heterocyclic products. Pathway selectivity is influenced by reaction conditions and differs between the model compound and the real nylon sample.
Boda Yang +4 more
wiley +1 more source
Adsorption Science & Technology, 2006 A large number of impurities appear during the production of caprolactam. Such impurities — especially coloured impurities — having a maximum UV absorbance at a wavelength of 290 nm, make it quite difficult to isolate the high-purity product. In order to
Hongtao Zhang +3 more
doaj +1 more source
Stimuli Responsive Poly(Vinyl Caprolactam) Gels for Biomedical Applications
Gels, 2016 Poly(vinyl caprolactam) (PNVCL) is one of the most important thermoresponsive polymers because it is similar to poly(N-isopropyl acrylamide). PNVCL precipitates from aqueous solutions in a physiological temperature range (32–34 °C).
Kummara Madhusudana Rao +2 more
doaj +1 more source
Polyethylene‐Polyamide‐6 Diblock Copolymers for Fused Filament Fabrication
Journal of Polymer Science, Volume 64, Issue 8, Page 1744-1759, 15 April 2026.Linear HDPE‐PA6 block copolymers were prepared by polymerization of ethylene to a macroinitiator and subsequent anionic caprolactam polymerization. The copolymer with a HDPE mass of 6500 Da and PA6 mass of 20.000 Da was used as a filament in 3D printing.
Elsa M. Schoeneberger +1 more
wiley +1 more source
Journal of Spectroscopy, 2014 Terahertz (THz) absorption spectra of the similarly structured molecules with amide groups including benzamide, acrylamide, caprolactam, salicylamide, and sulfanilamide in the solid phase at room temperature and 7.8 K for salicylamide are reported and ...
Ye Jiang +10 more
doaj +1 more source
Catalytic Autoxidation for Depolymerization of Multilayer Plastic Films
ChemSusChem, Volume 19, Issue 7, 14 April 2026.Catalytic autoxidation using a Co/Mn/Br catalyst system depolymerizes diverse polymers in multilayer plastic films, generating oxygenated small molecules such as dicarboxylic acids. The method tolerates additives and disrupters and converts up to 48 mol% polymer carbon into soluble products, enabling chemical recycling of complex plastic waste ...
Ciaran W. Lahive +16 more
wiley +1 more source