molecular interfacial structure and plasticizer migration

the molecular interfacial structure and plasticizer migration

The molecular interfacial structure and plasticizer migration

Tributyl acetyl citrate (TBAC), a widely-used "green" plasticizer, has been extensively applied in products for daily use. In this paper, a variety of analytical tools including sum frequency generation vibrational spectroscopy (SFG), coherent anti-Stokes Raman spectroscopy (CARS), contact angle gon …

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the molecular interfacial structure and plasticizer migration

The molecular interfacial structure and plasticizer migration

The molecular interfacial structure and plasticizer migration facilitate a molecular level understanding of plasticized polymers, aiding in the design of PVC

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the molecular interfacial structure and plasticizer migration

The molecular interfacial structure and plasticizer migration

Tributyl acetyl citrate (TBAC), a widely-used "green" plasticizer, has been extensively applied in products for daily use. In this paper, a variety of analytical tools including sum frequency generation vibrational spectroscopy (SFG), coherent anti-Stokes Raman spectroscopy (CARS), contact angle goniometry (CA), and Fourier transform infrared spectroscopy (FTIR) were applied together to

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the molecular interfacial structure and plasticizer migration

The molecular interfacial structure and plasticizer migration

The molecular interfacial structure and plasticizer migration behavior of ``green'' plasticized poly(vinyl chloride)

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molecular interfacial structure and plasticizer migration

Molecular Interfacial Structure and Plasticizer Migration

Molecular Interfacial Structure and Plasticizer Migration Behavior of “Green” Plasticized Poly (vinyl chloride) January 2015 Physical Chemistry Chemical Physics 17(6)

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xiaoxian zhang, yaoxin li, jeanne m. hankett and zhan chen*

Xiaoxian Zhang, Yaoxin Li, Jeanne M. Hankett and Zhan Chen*

The molecular interfacial structure and plasticizer been made to decrease the migration of plasticizers from the PVC network.15–20 Plasma treatment has been performed on

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green” plasticized poly (vinyl chloride) electronic

Green” Plasticized Poly (vinyl chloride) Electronic

Molecular Interfacial Structure and Plasticizer Migration Behavior of “Green” Plasticized Poly (vinyl chloride) Xiaoxian Zhang, Yaoxin Li, Jeanne M. Hankett and Zhan Chen* Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States

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molecular surface structural changes of plasticized pvc

Molecular Surface Structural Changes of Plasticized PVC

The effects of oxygen and argon plasma treatment on PVC/DBP and PVC/DEP hybrid films were investigated on both the surface and bulk of films using SFG and CARS to evaluate the different plasticizer migration processes.

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green” plasticized poly (vinyl chloride) electronic

Green” Plasticized Poly (vinyl chloride) Electronic

Molecular Interfacial Structure and Plasticizer Migration Behavior of “Green” Plasticized Poly (vinyl chloride) Xiaoxian Zhang, Yaoxin Li, Jeanne M. Hankett and Zhan Chen* Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States

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plasticizer migration - an overview | sciencedirect topics

Plasticizer Migration - an overview | ScienceDirect Topics

Migration of plasticizer is also affected by the molecular size of the plasticizer. The polymeric plasticizer, dioctyl maleate (DOM), reduces the migration rate (Figure 11.27) [76]. As a high molecular weight, DOM overcomes the resin hardening and minimizes the leaching kinetics.

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molecular dynamic simulation of performance of modified bamo

Molecular dynamic simulation of performance of modified BAMO

The migration of plasticizer is related to its diffusion coefficient (D), which depends on the MSD and time (t) of MD simulation. Therefore, D is described in Eq. (6) based on the relation of

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plasticizer molecular weight and plasticizer retention in pvc

PLASTICIZER MOLECULAR WEIGHT AND PLASTICIZER RETENTION IN PVC

plasticizer molecular weight and/or decreasing the degree of branching of the plasticizer can reduce volatile loss from PVC. Table 1 provides a list of commonly used plasticizers along with their molecular weight, volatility loss, and water extraction. These data show the plasticizers most resistant to volatilization have higher molecular weights.

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directly probing molecular ordering at the buried polymer

Directly Probing Molecular Ordering at the Buried Polymer

Interfacial Molecular Structures of Polyelectrolyte Brush in Contact with Dry Nitrogen, Water Vapor, Liquid Water, and Aqueous Electrolyte Solution Studied by Sum Frequency Generation Spectroscopy. Journal of the American Chemical Society 2010, 132 (48) , 17271-17276.

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high molecular weight plasticizers in thermoplastic starch

High molecular weight plasticizers in thermoplastic starch

The migration of a low molecular weight species in the blend to the interface would reduce the PE–TPS interfacial tension and hence the surface free energy of the system. The spreading of such a glycerol-rich layer between the polyethylene and the starch would be dictated by Harkins equation [ 61 , 62 ] and has already been reported as a

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chen lab - publications

Chen Lab - Publications

Andrew P. Boughton, Khoi Nguyen, Ioan Andricioaei, Zhan Chen, "Interfacial Orientation and Secondary Structure Change in Tachyplesin I: Molecular Dynamics and Sum Frequency Generation Spectroscopy Studies", Langmuir, 2011, 27(23), 14343-14351

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clarifying the nomenclature of elvaloy-based geomembranes

Clarifying the nomenclature of Elvaloy-based geomembranes

In addition to having a higher molecular weight, KEE is a solid plasticizer/polymer that does not break down, which prevents migration and loss from the geomembrane because it retains its large structure and remains a solid. The molecular weight of traditional plasticizers, e.g., phthalates, range from 200 to 530 grams/mole (Stark et al. 2005).

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plasticizer migration - an overview | sciencedirect topics

Plasticizer Migration - an overview | ScienceDirect Topics

Migration of plasticizer is also affected by the molecular size of the plasticizer. The polymeric plasticizer, dioctyl maleate (DOM), reduces the migration rate (Figure 11.27) [76]. As a high molecular weight, DOM overcomes the resin hardening and minimizes the leaching kinetics.

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effects of molecular design parameters on plasticizer

Effects of molecular design parameters on plasticizer

Molecular mechanisms for how each design parameter influences plasticizer performance metrics are also discussed. Moreover, we report a nontrivial dependence of plasticizer migration rate on temperature, which reconciles seemingly conflicting experimental reports on the migration tendency of different plasticizers.

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structure, dynamics and transport behavior of migrating

Structure, dynamics and transport behavior of migrating

The incorporation of a corrosion inhibitor into a cement-based material can enhance the durability of the reinforced concrete. In this study, molecular dynamics simulation is utilized to study the interfacial structure and dynamic behavior of a solution with three migrating corrosion inhibitors (MCI …

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migration of the plasticizer in the compatibilized pp/pvb

Migration of the plasticizer in the compatibilized PP/PVB

However, plasticizers can migrate from polymer due to weak interactions between polymeric chains and plasticizer molecules. It causes changes in performance and properties of the system plasticizer migration relies on several factors including chemical structure and concentration of the plasticizer, processing conditions, etc. [25,26,27,28,29,30].

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1,2,3,* , ewa pankalla 2 1, - mdpi

1,2,3,* , Ewa Pankalla 2 1, - MDPI

1.3. Migration of Plasticizers Under given conditions, the permanence of a plasticizer in a flexible polymer product depends on several factors, namely its structure, chemical composition, molecular weight, and polarity. Because a plasticizer molecule is usually not chemically bonded to a polymer

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formulation-derived interface characteristics contributing to

Formulation-Derived Interface Characteristics Contributing to

CEF plasticizer is observed to segregate at substrate interface and at air interface Plasticizer migration and evaporation is tied to mechanical damage and aging in NC-containing propellants (Pesce-Rodriguez et al) Reflectometry shows that the 9404 binder deposition process dissolves HMX film, confirming microscopy SLD of plasticizer-rich

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plasticizer molecular weight and plasticizer retention in pvc

PLASTICIZER MOLECULAR WEIGHT AND PLASTICIZER RETENTION IN PVC

plasticizer molecular weight and/or decreasing the degree of branching of the plasticizer can reduce volatile loss from PVC. Table 1 provides a list of commonly used plasticizers along with their molecular weight, volatility loss, and water extraction. These data show the plasticizers most resistant to volatilization have higher molecular weights.

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enhanced interfacial and mechanical performance of styrene

Enhanced interfacial and mechanical performance of styrene

Secondly, plasticizers, which are not chemically attached to the matrix, may leave the polymer through migration or extraction by some solvents under certain conditions. In this regard, surface modification techniques, such as cross-linking and surface coating can be preferred choice to control plasticizer migration [, , ].

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