Two-Site Adsolubilization Model of Incorporation of Fluoromonomers into Fluorosurfactants Formed on Cotton Fabric

Hanumansetty, Srinivas; O’Rear, Edgar A.

doi:10.1021/la404217e

Cited by 6 publications

(4 citation statements)

References 54 publications

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“…Microviscosity measurements by probes introduced in the surfactant substrate atmosphere revealed that the mobility of the probes becomes more restricted in the adsorbed layer than perimeter of the admicelle). 38 in a micelle. This indicates that the admicelle has a highly structured and rigid interior as compared to that of a micelle in the bulk.…”

Section: Step 2: Adsolubilization 1617mentioning

confidence: 99%

“…A two-site adsolubilization model 37 was ascribed to the adsolubilization of fluoro monomers into fluorosurfactant admicelles on a cotton substrate. 38 The two-site adsolubilization model states that the monomer adsorbs in the admicelle at two different sites; one at the palisade layer (Гc) and other at the perimeter of the admicelle (Гp) (Fig 3). The fluorosurfactants studied had lower CACs and CMCs than corresponding hydrocarbons since the fluorosurfactants are more hydrophobic in nature.…”

Section: Step 2: Adsolubilization 1617mentioning

confidence: 99%

“…Two site adsolubilization model (Гc: palisade layer Гp: perimeter of the admicelle) . Reprinted with permission from (Hanumansetty,S.…”

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confidence: 99%

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Admicellar Polymerization and Its Application in Textiles

Ulman

Shukla

2015

Adv. Polym. Technol.

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This article is an overview of a novel polymerization technique known as admicellar polymerization (ADPM).ADPM is known as a "surface analogue" of emulsion polymerization, and it consists of three main steps that include (1) admicelle formation, (2) adsolubilization, and (3) polymerization. This review encompasses all the applications of ADPM in the field of textiles. ADPM has been used mainly for finishing of textiles, e.g., for achieving flame retardancy, UV protection, water repellency, etc. It has also been used for improving the adhesion of natural fibers used for the reinforcement of polymer matrices. It was observed that though an extensive and constructive research work has been conducted at laboratory level to understand ADPM process and explore its applications, its industrial acceptance in textiles has not been reported yet. Scope for further research has also been discussed in this review article. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2015, 0, 21556; View this article online at wileyonlinelibrary.com.

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Section: Step 2: Adsolubilization 1617mentioning

confidence: 99%

Section: Step 2: Adsolubilization 1617mentioning

confidence: 99%

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Admicellar Polymerization and Its Application in Textiles

Ulman

Shukla

2015

Adv. Polym. Technol.

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“…The process of developing a system for admicellar polymerization involves measurement of surfactant adsorption and the adsolubilization or partitioning of monomers into adsorbed structures (reverse hemimicelles for MWCNTs). In addition modified two-site adsolubilization [27,28] and binary adsolubilization [29] models were used to predict aggregation number and partition coefficients beween surfactants structures and the bulk solution.…”

Section: Introductionmentioning

confidence: 99%

Hydrophilic encapsulation of multi-walled carbon nanotubes using admicellar polymerization

Hanumansetty

O’Rear

Resasco

2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Admicellar polymerization (AP), a surface analogue of emulsion polymerization was used to obtain a thin layer of hydrophilic polymer coating on multi-walled carbon nanotubes (MWCNTs). The hydrophilic nature can facilitate integration of carbon nanotubes into a variety of composite materials. To develop hydrophilic polymer by AP, acrylate monomers were copolymerized using sodium dodecyl sulfate as a surfactant. Development of a system for AP involves measurement of surfactant adsorption and adsolubilization or partitioning of monomer into adsorbed structures (reverse hemimicelles). A modified two-site adsolubilization model was used to calculate the size of surfactant aggregates over the surface of MWCNTs and a binary adsolubilization model was employed to predict number of monomers adsolubilized from single component experiments.Adsolubilized monomers were polymerized to form a polymer nanocomposite, which was then hydrolyzed to obtain a hydrophilic nanocomposite. SEM, Energy Dispersive Spectroscopy (EDS), Thermo Gravimetric Analysis (TGA) and FT-IR confirmed the formation of polymer on multi-walled carbon nanotubes (MWCNTs). Modified MWCNTs readily dispersed in aqueous media and were stable after 3 days.

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