Surface Tension and Adsorption Properties of a Series of Bolaamphiphilic Poly(fluorooxetane)s

Kausch, Charles M.; Kim, Yongsin; Russell, Vernon M.; Medsker, Robert E.; Thomas, Reji

doi:10.1021/la034233q

Cited by 33 publications

(38 citation statements)

References 38 publications

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“…Furthermore, DG ads (= À RTln Table 2 substantiates this claim with A 1 % 50 and 46 Å 2 /molecule for 1 and 2, respectively. These values of A 1 are comparable with fits from previous studies of amphiphilic oligo(fluorooxetanes) [28]. The adsorption of 1 and 2 to an air-water interface was examined by dilational interfacial rheometry.…”

Section: Resultssupporting

confidence: 86%

Adsorption properties of oligo(fluorooxetane)-b-poly(ethylene oxide)-b-oligo(fluorooxetane) triblock copolymers at the air–water interface: Comparison of hydroxyl and acetate end groups

Ertekin

Kim²,

Kausch³

et al. 2009

Journal of Colloid and Interface Science

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Section: Resultssupporting

confidence: 86%

Adsorption properties of oligo(fluorooxetane)-b-poly(ethylene oxide)-b-oligo(fluorooxetane) triblock copolymers at the air–water interface: Comparison of hydroxyl and acetate end groups

Ertekin

Kim²,

Kausch³

et al. 2009

Journal of Colloid and Interface Science

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“…These fluorinated oxetane polymers (Table 4) are offered in many forms and functionalities primarily as fluorosurfactants and coatings additives (Kausch et al 2002; Kausch et al 2003a, 2003b; Thomas 2006; Omnova Solutions 2011). …”

Section: Families Of Perfluoroalkyl and Polyfluoroalkyl Substancesmentioning

confidence: 99%

Perfluoroalkyl and polyfluoroalkyl substances in the environment: Terminology, classification, and origins

Buck

Franklin²,

Berger

et al. 2011

Integr Environ Assess Manag

2,913

2,070

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The primary aim of this article is to provide an overview of perfluoroalkyl and polyfluoroalkyl substances (PFASs) detected in the environment, wildlife, and humans, and recommend clear, specific, and descriptive terminology, names, and acronyms for PFASs. The overarching objective is to unify and harmonize communication on PFASs by offering terminology for use by the global scientific, regulatory, and industrial communities. A particular emphasis is placed on long-chain perfluoroalkyl acids, substances related to the long-chain perfluoroalkyl acids, and substances intended as alternatives to the use of the long-chain perfluoroalkyl acids or their precursors. First, we define PFASs, classify them into various families, and recommend a pragmatic set of common names and acronyms for both the families and their individual members. Terminology related to fluorinated polymers is an important aspect of our classification. Second, we provide a brief description of the 2 main production processes, electrochemical fluorination and telomerization, used for introducing perfluoroalkyl moieties into organic compounds, and we specify the types of byproducts (isomers and homologues) likely to arise in these processes. Third, we show how the principal families of PFASs are interrelated as industrial, environmental, or metabolic precursors or transformation products of one another. We pay particular attention to those PFASs that have the potential to be converted, by abiotic or biotic environmental processes or by human metabolism, into long-chain perfluoroalkyl carboxylic or sulfonic acids, which are currently the focus of regulatory action. The Supplemental Data lists 42 families and subfamilies of PFASs and 268 selected individual compounds, providing recommended names and acronyms, and structural formulas, as well as Chemical Abstracts Service registry numbers. Integr Environ Assess Manag 2011;7:513–541. © 2011 SETAC

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“…The surface energy (γ), as well as its polar (γ p ) and dispersive (γ d ) components, were calculated on the basis of Owens-Wendt-Rabel-Kaelble (OWRK) method, [44,45] using three testing liquids, respectively, deionized water, formamide, and diiodomethane. Each final CA was averaged from the results of at least 50 monofilaments.…”

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

Synergistic Strengthening and Toughening the Interphase of Composites by Constructing Alternating “Rigid‐and‐Soft” Structure on Carbon Fiber Surface

Wan

Liu³

et al. 2019

Adv Materials Inter

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strength, [7] while weakening the interphase can produce additional toughness via fiber debonding and plastic deformation of the interfacial layer. [8] Therefore, engineering the interphase so as to solve the conflict between strength and toughness affords a good opportunity.Nacre, a unique microscale architecture of "brick-and -mortar" that can reform after breaking, endows it with pre-eminent mechanical strength and toughness. [9] Thus, considerable attentions have been contributed to mimic this delicate structure, aiming at gaining exceptional mechanical properties. Different inorganic materials, including graphene, [10] layered double hydroxide (LDH), [11] nanoclay, [12] man-made CaCO 3 , [13] Al 2 O 3 , [14] carbon nanotube (CNT), [15] and TiO 2 , [16] have been employed as "bricks" in fabrication of analogous nacre film materials. Observation of these nacre-like films indicates that the introduction of adequate reinforcing components and appropriate interfacial interactions over several distinct scales are keys affecting the mechanical properties. Inspired by these, whether construction of an composite interphase with nacre-like layered structure can simultaneously enhance the composites' interfacial strength and toughness?Layer-by-layer (LbL) assembly provides a good approach to fabricate such nacre-like layered structure at interphase region, since it has been proved to be a facile way for the fabrication of hierarchical nanostructured layers on various substrates via electrostatic interaction between differently charged materials. [1,6,17] To manifest the critical characteristics of natural nacre, a LDH/poly(sodium-4-styrenesulfonate) nanostructured coating over the surface of glass fiber by LbL was reported by Luca et al., [8] which increased the interfacial shear strength (IFSS) and debonding toughness by 30% and 162%. In addition, the LbL method has been employed to deposit graphene oxide (GO)/aramid nanofiber multilayers, [18] GO/SiO 2 multilayers, [19] and CNT coatings [20] on glass fiber or carbon fiber surface to improve interfacial adhesion of composites.Polydopamine (PDA) and other catechol compounds, due to their outstanding adhesive property and the role of providing platform for secondary reactions, are highly sought after being used to modify the inert surface of carbon fibers. [21][22][23][24][25] Moreover, PDA has dense aromatic structures in its molecular Interphase with nacre-like structured multilayer is constructed by alternatively depositing two polymers, respectively "rigid" polydopamine (PDA) and "flexible" polyether amine, on carbon fiber surface via the layer-by-layer (LbL) approach. The optimal interfacial strength and toughness are achieved for composites with three layers of PDA/polyether amine, respectively, 39.2% and 99.8% superior to the untreated fiber composites. The outstanding mechanical properties are mainly ascribed to the synergistic interactions of covalent bond, hydrogen bonding, and π-π stacking among fiber, multilayer, and matrix by transferring stress and bridgin...

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Surface Tension and Adsorption Properties of a Series of Bolaamphiphilic Poly(fluorooxetane)s

Cited by 33 publications

References 38 publications

Adsorption properties of oligo(fluorooxetane)-b-poly(ethylene oxide)-b-oligo(fluorooxetane) triblock copolymers at the air–water interface: Comparison of hydroxyl and acetate end groups

Adsorption properties of oligo(fluorooxetane)-b-poly(ethylene oxide)-b-oligo(fluorooxetane) triblock copolymers at the air–water interface: Comparison of hydroxyl and acetate end groups

Perfluoroalkyl and polyfluoroalkyl substances in the environment: Terminology, classification, and origins

Synergistic Strengthening and Toughening the Interphase of Composites by Constructing Alternating “Rigid‐and‐Soft” Structure on Carbon Fiber Surface

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