Results 121 to 130 of about 1,876 (297)
Revista do Colégio Brasileiro de CirurgiõesOBJETIVO: Comparar as aderências entre dois grupos de ratas Wistar submetidas à colocação intraperitoneal da tela de polipropileno e malha leve de polipropileno revestida com ácido graxo ômega-3.
Caroline Kist +5 more
doaj +1 more source
Phosphonate-Functionalized Polypropylenes: Single-Component Flame Retardants
Phosphonate-modified polypropylenes (PP R ; R = PPr, P(O)(O i Pr)2; PPh, P(O)(OPh)2) have been prepared via a two-step synthesis and display enhanced thermal stability, offering potential as compatible single-component flame-retardant additives for ...
O’Hare, Dermot +3 more
core +1 more source
Nonisothermal crystallization and melting behavior of syndiotactic polypropylenes of different microstructure [PDF]
, 2008 Syndiotactic polypropylenes and their copolymers with 1-olefins were synthesized using two metallocene/MAO catalytic systems, and the effect of the different microstructures on nonisothermal crystallization and subsequent melting was studied.
Palza Cordero, Humberto +4 more
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Advanced Science, EarlyView.This perspective proposes a cohesive machine learning strategy to decode microplastic aging. It advocates for Federated Learning to dismantle global data silos and introduces the TRACE framework (TRansport, Aging, Corona, Ecotoxicity). By integrating physics‐informed modeling with causal discovery, this approach bridges the laboratory‐field gap to ...
Yaping Lyu +6 more
wiley +1 more source
Science and Technology of Advanced Materials, 2008 In this work, the relationship between the unsaturated chain end group content and the thermal oxidative degradation rate was systematically studied with binary polymer blends of isotactic polypropylene (iPP) with and without the unsaturated chain end ...
Hisayuki Nakatani et al
doaj
Advanced Science, EarlyView.An edible biohybrid platform triggers nanoplastics (NPs) aging and agglomeration by in situ generating hydroxyl radicals within the intestine. The enlarged NPs are unable to penetrate the intestine and are subsequently excreted. Simultaneously, probiotic biofilms reinforce the intestinal barrier.
Su Zhou +4 more
wiley +1 more source
Structure evolution of alpha- and beta-polypropylenes upon photodegradation
, 2006 Vliv UV záření na čistý a b-nukleovaný izotaktický polypropylen byl studovány na molekulární, nadmolekulární a mikroskopické úrovni. Komerčně dostupný izotaktický polypropylen (PP) byl modifikován specifickým b-nukleačním činidlem založeném na N,N ...
Raab, Miroslav +3 more
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Influences of impurities in recycled plastics on properties of PIM sandwich panels [PDF]
, 2009 Powder impression moulding (PIM) is a novel technology for manufacturing lightweight sandwich panels from plastics in powder form. The process is featured by its high tolerant to impurities or contaminants in the feedstock and thus requires much less ...
Tarverdi, K, Qi, K, Song, J
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The Spatiotemporal Genetic Architecture of Seed Vigor in Upland Cotton
Advanced Science, EarlyView.Leveraging the semi‐automated SeedRanger platform, we profiled the germination kinetics of 356 cotton accessions at a 30‐min interval. This high‐throughput phenomic approach delineated a temporal genetic network comprising 541 stage‐specific loci. Crucially, functional validation identified FLA2 as a pivotal, auxin‐modulated regulator that orchestrates
Luyao Wang +32 more
wiley +1 more source
Advanced Science, EarlyView.Lanthanide‐doped polyurea microspheres are prepared via a facile one‐step precipitation polymerization. They exhibit strong hydrogen‐bonding and coordination interactions with excellent properties, including multicolor emission, high quantum yield (75.3%), remarkable stability, redispersibility, and biocompatibility.
Guiyu Zhang +9 more
wiley +1 more source