The structure of urea-formaldehyde (UF) resin was studied in light of the influence of various synthesis parameters on the chemical structure of the resulting resin solutions. The structural variability was analyzed by 13C nuclear magnetic resonance spectroscopy (NMR). Using appropriate pulse ...
The structure of the phenol-containing molecule and the number of phenol rings distinguish different types of epoxy resins. DGEBA (diglycidyl ether of bisphenol-A) is one of the most widely used epoxy resins today. Modifying the ratio of epichlorohydrin to BPA during production can generate high ...
Pore structure design and mass transfer optimization of resin catalysts based on lattice Boltzmann method forn-butyl levulinate synthesis Peiyun Xiong, ... Ting Qiu 1 August 2025 Research articleAbstract only Mechanism and kinetics of the regeneration of CO2-loaded ammonia solution ...
Structure Search 1 2 All directories Seller Buyer Post One Request,Get Multiple Quotestell us buying need receive quotations deal with supplier Request for Quotation2025-05-17 BPC 157 100MG 2025-05-17 LUCIGENIN 1KG 2025-05-17 Riboflavin 200KG 2025-05-17 Methyl eugenol ...
University of Porto Laboratory of Separation and Reaction Engineering Laboratory of Catalysis and Materials, Porto, Portugal Mariano Martin University of Salamanca, Salamanca, Spain Sankar Nair Georgia Institute of Technology School of Chemical and Biomolecular Engineering, Atlanta, Georgia, United States ...
Although much progress has been achieved in revealing more about the chemical structure of soil organic N and P and the mechanisms involved in their formation, we are still far from completely knowing the structures and understanding the formation and dynamics of these major soil organic matter comp...
& Doi, Y. Effects of residual zinc compounds and chain-end structure on thermal degradation of poly(ε-caprolactone). Biomacromolecules 5, 1480–1488 (2004). CAS Google Scholar Kondo, R., Toshima, K. & Matsumura, S. Lipase-catalyzed selective transformation of polycaprolactone into cyclic di...
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Cracking may be defined as the failure caused by intrinsic or induced stresses in the molecular structure of the polymer. By stressing the molecular bond it weakens the cohesive forces that keep the chemical elements together. The failure of the molecular bond in a stressed area causes an invasio...
结合2004年春季对国内外10种低密度聚乙烯树脂进行农田应用试验的结果,着重分析了基础树脂化学结构对农膜耐老化性能的影响,提出了用于功能膜较好的树脂牌号。 The effect of chemical structure of matrix resin on the weathering resi...