polydispersity


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polydispersity

(ˌpɒlɪdɪˈspɜːsɪtɪ)
n
(Chemistry) chem the state of being polydisperse
References in periodicals archive ?
The polydispersity index (PDI) of the recycled PET is narrower than that of the raw material and the quality of recycled PET fiber is comparable to that made from bottle flakes for the purpose of filling.
Modeling and Optimizing of Producing Recycled PET from Fabrics Waste via Falling Film-Rotating Disk Combined Reactor
The characterization of colloidal silver dissolved in water and cell culture medium was analyzed by dynamic light scattering (DLS); colloidal silver dissolved in water showed an average size of 100 nm with a polydispersity index of 0.2; colloidal silver dissolved in cell culture medium showed an average size of 155 nm and polydispersity index of 0.23 (Figures 1(a) and 1(b)).
In Vitro Evaluation of Colloidal Silver on Immune Function: Antilymphoproliferative Activity
The actual molecular weight distributions can be further documented by using gel permeation chromatography (GPC) or size exclusion chromatography (SEC) to evaluate the molecular weight parameters (molecular weight averages and polydispersity, for example).
Failure analysis of a thermoplastic elastomer: melt flow index method provides critical data
Instead of the traditional ESCR test, he uses the polydispersity index determined by melt theology, which is related to ESCR.
Polyethylene blends for piping
Conventional synthesis of alkyd resins leads to polycondensates with a rather high polydispersity, in which case the high molecular-weight part contributes to a high intrinsic viscosity, and the low molecular-weight part has a negative impact on drying properties.
Resins and additives for powder coatings and alkyd paints, based on renewable resources
The instruments are suited for users performing rapid characterization of size and polydispersity. The range incorporates the automated DynaPro Titan Plate Reader, making the technology available for the rapid screening of unfractionated samples for applications such as crystallography and aggregation studies.
Dynamic Light Scattering and high throughput screening
Surprisingly, we found that SAA polyols also reduced the polydispersity of alkyd resins while maintaining their molecular weight (Mn).
High-solids alkyds resins with improved properties based on styrene allyl alcohol (SAA) resinous polyols
The purpose of this study is to evaluate the influence of the number average molecular weight of the amorphous component ([Mn.sub.ps]), its polydispersity and its weight fraction ([w.sub.PS]), at different crystallization temperatures ([T.sub.c]), on the segregation morphology in blends of PCL/PS.
Phase Separation and Segregation Morphology of PCL/PS Blends: Quantitative Effect of the Crystallization Temperature, Composition, and Molecular Weight of PS
Particle size, polydispersity index and zeta potential
In Situ Hydrogel Formulation for Intra-Articular Application of Diclofenac Sodium-Loaded Polymeric Nanoparticles/Diklofenak Sodyum Yuklu Polimerik Nanopartikullerin Intra-Artikuler Uygulamasi Icin In Situ Hidrojel Formulasyonu
The acoustic density entering the system and the influence of the latter on spirooxazine nanocapsules' shape, average size, and polydispersity index (PDI) were systematically studied.
Effects of Ultrasound Irradiation on the Preparation of Ethyl Cellulose Nanocapsules Containing Spirooxazine Dye
Gregory Sawyer, University of Florida; "Effect of polydispersity on the properties of 1,4-polybutadiene," C.
Rubber Division meets in SC
The molecular weights and polydispersity index (P.I) of all polymers were determined by using gel permeation chromatography (GPC).
Copolymerization of 4-acetylphenyl methacrylate with ethyl methacrylate: synthesis, characterization, monomer reactivity ratios, and thermal properties
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