Fiber Spinning of Ultrahigh Molecular Weight Isotactic Polypropylene: Melt Spinning and Melt Drawing.
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DOI: 10.1002/cplu.202300045
Abstract: Herein, we report fiber spinning of tailored isotactic polypropylene (iPP) by melt spinning and melt drawing, yielding an adjustable diameter of 40 - 400 μm. The crystallinity of all obtained fibers with a molecular weight… read more here.
Keywords: fiber spinning; isotactic polypropylene; melt spinning; molecular weight ... See more keywords
Modification of isotactic polypropylene by silica nanocapsules via melt blending method
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DOI: 10.1002/pc.23995
Abstract: Isotactic polypropylene (iPP) fibers containing silica nanocapsules (described as SNCs) were prepared with twin-screw extruder. Modification of silica nanocapsules was hydrolyzed with octadecyltrimethoxysilane in order to improve the interaction between capsules and the hydrophobic PP… read more here.
Keywords: microscopy; ipp; silica; silica nanocapsules ... See more keywords
Effect of entanglement upon branching on dispersibility, β-nucleating and mechanically strengthening ability of polystyrene in isotactic polypropylene
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DOI: 10.1007/s00289-020-03259-4
Abstract: Polymers with benzene rings have the potential to act as macromolecular β-nucleating agents and rigid organic particles for isotactic polypropylene (iPP). The dispersibility in iPP matrix is a key factor for their β-nucleating efficiency and… read more here.
Keywords: ipp; dispersibility; strengthening ability; effect ... See more keywords
Continuous monitoring of intrapelvic pressure during flexible ureteroscopy using a sensor wire: a pilot study
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DOI: 10.1007/s00345-020-03216-w
Abstract: Purpose To evaluate the feasibility of measuring the intrapelvic pressure (IPP) during f-URS with a wire including a pressure sensor and to assess IPP profiles during the procedure. Methods Patients undergoing f-URS for stone disease… read more here.
Keywords: intrapelvic pressure; irrigation; ipp; wire ... See more keywords
Stage-based implementation of Immediate Postpartum Long Acting Reversible Contraception Using a Reproductive Justice Framework.
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DOI: 10.1016/j.ajog.2019.11.1273
Abstract: The immediate postpartum period (IPP) is a favorable, safe and effective time to provide long acting reversible contraceptives (LARC), yet it is not widely available. We describe an innovative hospital-based approach to IPP LARC that… read more here.
Keywords: implementation; ipp; reproductive justice; ipp larc ... See more keywords
Developing, conducting and evaluating the internship preparatory program (Ipp)
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DOI: 10.1016/j.amsu.2021.103215
Abstract: Background Medical schools worldwide have employed different practices to facilitate a smooth transition from medical school into the internship phase to promote success in graduates’ future professional life. The College of Medicine at Princess Nourah… read more here.
Keywords: preparatory program; ipp; medicine; program ipp ... See more keywords
Optimal location and capacity planning for distributed generation with independent power production and self-generation
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DOI: 10.1016/j.apenergy.2016.11.125
Abstract: This paper proposes a planning model for power distribution companies (DISCOs) to maximize profit. The model determines optimal network location and capacity for renewable energy source, which are categorized as independent power production (IPP) and… read more here.
Keywords: capacity; energy; ipp; power ... See more keywords
Female adolescent athletes' attitudes and perspectives on injury prevention programs.
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DOI: 10.1016/j.jsams.2016.06.009
Abstract: OBJECTIVES To examine what factors influence a high school female athlete's stated willingness to perform a lower extremity injury prevention program (IPP). A secondary aim was to examine if a participant's stated willingness affected her… read more here.
Keywords: injury prevention; ipp; perform ipp; willingness perform ... See more keywords
Interfacial nucleation in iPP/PB-1 blends promotes the formation of polybutene-1 trigonal crystals
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DOI: 10.1016/j.polymer.2018.01.078
Abstract: Abstract The formation of trigonal Form I′ crystals of polybutene-1 (PB-1) directly from melt has drawn much attention in past decades. In this study, we investigate the fractionated crystallization behavior of PB-1 within droplets formed… read more here.
Keywords: ipp; formation; form; interfacial nucleation ... See more keywords
Modelling flow induced crystallization of IPP: Multiple crystal phases and morphologies
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DOI: 10.1016/j.polymer.2019.121806
Abstract: Abstract Being able to properly model the material structure formation during processing is a fundamental step to predict final product properties, especially for semicrystalline polymers, like isotactic PolyPropylene (iPP), which can develop a multiplicity of… read more here.
Keywords: ipp; crystallization; model; structure ... See more keywords
A molecular dynamics study of epitaxy-induced chain orientation and ordering of isotactic polypropylene
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DOI: 10.1016/j.polymer.2020.122987
Abstract: Abstract Phase selective nucleation of single chain isotactic polypropylene (iPP) into specific crystalline polymorphs is enabled by heterogeneous nucleating agents. Molecular dynamics simulations were used to investigate the ordering of isolated iPP chains over ideal… read more here.
Keywords: chain; orientation; molecular dynamics; ipp ... See more keywords