Results 91 to 100 of about 1,876 (297)

Increased Performance of Thermoplastic Packaging Materials by Using a Mild Oxidizing Biobased Additive

International Journal of Polymer Science, 2012
Green additives such as prodegradants based on natural fatty acids and iron can improve the environmental profile of thermoplastic packaging materials. We present two studies in which this is demonstrated.
Ferdinand Männle, Jens Kjær Jørgensen, Bjørn Steinar Tanem   +2 more
doaj   +1 more source

Polylactic acid film versus acellular porcine small intestinal submucosa mesh in peritoneal adhesion formation in rats Filme ácido poli-lático versus tela de submucosa intestinal suína na formação de aderências peritoneais em ratos

Acta Cirúrgica Brasileira, 2009
PURPOSE: To assess intraperitoneal adhesion formation in rats after the single implantation of intraperitoneal polypropylene mesh versus SIS mesh, and the effect of PAF as a polypropylene mesh barrier.
Ricardo Gonçalves da Costa, Marcelo Betancort Lontra, Priscila Scalco, Leandro Totti Cavazzola, Richard Ricachenewski Gurski   +4 more
doaj   +1 more source

Streptavidins Coordinate Biotin Sequestration and Self‐Resistance Within a Biotin‐Pathway Antibiotic Network

Advanced Science, EarlyView.
A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa, Jingjun Mo, Xiaotong Diao, Feng Xie, Tingting Wang, Haowen Zhao, Dalei Wu, Rolf Müller, Chengzhang Fu   +8 more
wiley   +1 more source

Polypropylenes

, 2016
openaire   +2 more sources

Structure evolution in α- and β-polypropylenes under UV irradiation

, 2015
Commercially available isotactic polypropylene (PP) was modified by a specific β-nucleating agent based on N,N'-dicyclohexylnaphthalene-2,6- dicarboxamide.
Fraïsse, Frédéric, Commereuc, Sophie, Raab, Miroslav, Čermák, Roman, Obadal, Martin, Výchopňová, Jana, Verney, Vincent   +6 more
core  

Single‐Particle Mid‐Infrared Photothermal Imaging Reveals Hidden Heterogeneity in Real‐World Micro‐ and Nanoplastics

Advanced Science, EarlyView.
Mid‐infrared photothermal imaging enables multidimensional profiling of micro‐ and nanoplastics in bottled water. A total of 9.9 × 104 particles L−1 is detected, with 64% in the nanoscale regime. Spectral evolution, including peak narrowing and band shifts, reveals local chain reorganization in polyethylene terephthalate (PET), highlighting intrinsic ...
Xinyu Deng, Yongqing Zhang, Xiaobin Tang, Hyeon Jeong Lee, Delong Zhang   +4 more
wiley   +1 more source

Rheological Properties of Tailor-Made Metallocene and Ziegler-Natta Based Controlled Rheology Polypropylenes

, 2015
Controlled rheology polypropylenes (CRPP) have been produced industrially by peroxide induced degradation in post-polymerization reactive extrusion (REX) operations.
Nie, Shouliang
core  

Properties and Film Applications of Metallocene-Based Isotactic Polypropylenes

, 1999
When using a stepwise isothermal segregation technique (SIST) by DSC, multiple melting endotherms are observed for metallocene-based isotactic polypropylenes (miPPs), whereas only a single melting peak is obtained for standard iPPs made by the Ziegler ...
Aiko Hanyu, Rusty Wheat
core   +1 more source

Adhesion‐Driven Removal of Microplastics From Aquatic Systems by Using Microgel Glues

Advanced Science, EarlyView.
Soft polymeric microgels function as “glues” that aggregate diverse microplastics through multivalent adhesion, promoting their interfacial deposition and co‐precipitation for efficient removal from water. Remarkably, this approach remains effective even for nanoscale plastic particles as small as 50 nm.
Jinmeng Zhang, Jie Xu, Wen Chen, Yanping Chen, Zixin Pan, Weitai Wu   +5 more
wiley   +1 more source