Effect of silica nanoparticles on structure and properties of waterborne UV-curable polyurethane nanocomposites

Zhang, Sheng; Yu, Aixia; Liu, Shilin; Zhao, Jie; Jiang, Jinqiang; Liu, Xiaoya

doi:10.1007/s00289-011-0689-3

Cited by 32 publications

(16 citation statements)

References 30 publications

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“…As described above in relation to blood compatibility, placing functional groups on the end of ion‐containing polyurethanes can significantly impact polymer properties . Similarly, placing photoactive groups on the end of waterborne PUDs efficiently provides UV‐curable PUDs . 2‐Hydroxyethyl acrylate (HEA) and 2‐hydroxyethyl methacrylate (HEMA) are two commonly employed photoactive molecules, which readily react with isocyanate end‐groups to produce a urethane bond and upon addition of a photoinitiator and UV‐light afford UV‐crosslinked films from PUDs.…”

Section: Applications Of Ion‐containing Segmented Polyurethanesmentioning

confidence: 99%

“…The fluorescent PUD described above is classified as an anionic PUD due to the carboxylic acid‐containing starting monomer . DMPA and 2,2‐bis(hydroxymethyl)butyric acid (DMBA) are common diols that afford anionic PUDs . Garrison et al synthesized cationic PUDs containing methoxylated soybean oil through the alkylation of N ‐methyldiethanolamine (MDEA) with acetic acid, providing ammonium cations in the backbone with carboxylate counterions.…”

Section: Ion‐containing Biobased Polyols and Waterborne Polyurethane mentioning

confidence: 99%

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Synthesis, Properties, and Applications of Ion‐Containing Polyurethane Segmented Copolymers

Nelson

Long

2014

Macro Chemistry & Physics

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Despite the well-established foundation of polyurethane chemistry in both industry and academia, research continues at a vigorous pace to refi ne synthetic processes and discover new functional materials. Incorporating ionic groups into polymers is a synthetic parameter capable of tailoring polymer properties and enabling emerging technologies. This review focuses on recent effort in the fi eld of ion-containing segmented polyurethane copolymers. Multiple synthetic strategies to incorporate both cationic and anionic sites, including a particular focus on waterborne polyurethane dispersions and green synthetic methods, are examined. Fundamental structure-property relationships based on ionic structure, content, and placement are explored and many applications, including biomedical products and polymer electrolytes for energy devices are discussed.(PEG) or poly(tetramethylene oxide) (PTMO), to the polyurethane reaction. The hydrogen bonding, depicted in Figure 1 , between the urethane carbonyl oxygen and urethane hydrogen, coupled with crystallization, constructs the hard segment (HS) domains, while the functionalized fl exible spacers comprise the soft segments (SSs) in an alternating fashion. The microphase-separated morphology of segmented polyurethanes is the foundation for their versatility, with the ability to further tune materials for a specifi c application with other synthetic parameters such as chemical composition and molecular weight. Yilgör and co-workers, [ 5 ] Yurtsever and co-workers, [ 6 ] and Wilkes and co-workers [ 7 ] extensively studied various model segmented polyurethane systems to further understand the morphology and factors infl uencing morphology on a fundamental structure-property level.Many comprehensive reviews and peer-reviewed journal articles focus on fundamental structure-property relationships of segmented polyurethanes.

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Section: Applications Of Ion‐containing Segmented Polyurethanesmentioning

confidence: 99%

Section: Ion‐containing Biobased Polyols and Waterborne Polyurethane mentioning

confidence: 99%

Synthesis, Properties, and Applications of Ion‐Containing Polyurethane Segmented Copolymers

Nelson

Long

2014

Macro Chemistry & Physics

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“…Most studies carried out on addition of silica particles into polyurethanes have mainly focused on the physical and mechanical behavior of these composites [36][37][38][39][40][41]. Nevertheless, there are rare reports in published literature reporting the permeation properties of gases through fumed silica-filled PU membranes, while most of them are related to sol-gel silica-filled polyurethanes [42,43].…”

Section: Introductionmentioning

confidence: 99%

Influence of various types of silica nanoparticles on permeation properties of polyurethane/silica mixed matrix membranes

Hassanajili

Khademi

Keshavarz

2014

Journal of Membrane Science

100

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“…Today, SiO 2 NPs have drawn a great deal of interest due to their favorable advantages such as relatively inexpensive, nontoxic, biocompatible, high thermal resistant, stability and ability to be functionalized with a range of small molecules and polymers [13,14]. Incorporation of SiO 2 NPs into PVC matrix can improve tensile strength and heat resistance of the PVC.…”

Section: Introductionmentioning

confidence: 99%

Application of SiO2 nanoparticles with double layer coverage consist of citric acid and l(+)-ascorbic acid for the production of poly(vinyl chloride)/SiO2 nanocomposite films with enhanced optical and thermal properties

Mallakpour

Naghdi

2015

Polym. Bull.

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Incorporation of SiO 2 nanoparticles (NPs) into poly(vinyl chloride) (PVC) matrix to prepare PVC/SiO 2 nanocomposites (NCs) can enhance its properties. To achieve improved properties for the NCs, NPs should be dispersed properly and be compatible within the polymer matrix. Therefore, to prevent SiO 2 NPs from aggregation, surface modification of NPs was performed by citric acid (CA) and L(?)-ascorbic acid (AA) as biological and environmental friendly coating layers for the first time. This process was carried out under ultrasonic irradiation condition, which is an economical and eco-friendly tool. After that three different amounts of modified SiO 2 (SiO 2 -CA-AA) were inserted into PVC matrix and PVC/ SiO 2 -CA-AA NCs were prepared using solution casting method. The structures and morphology of the prepared NC films were verified by several techniques including Fourier transfer infrared, X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, ultraviolet-visible (UV-Vis) spectroscopy and tensile testing. Thermogravimetric analysis confirmed the presence of about 13 wt% modifiers on the surface of SiO 2 . Microscopic observations showed good dispersity of SiO 2 -CA-AA NPs in the polymer matrix. Resulting NC films showed more flexibility than pure PVC.

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Effect of silica nanoparticles on structure and properties of waterborne UV-curable polyurethane nanocomposites

Cited by 32 publications

References 30 publications

Synthesis, Properties, and Applications of Ion‐Containing Polyurethane Segmented Copolymers

Synthesis, Properties, and Applications of Ion‐Containing Polyurethane Segmented Copolymers

Influence of various types of silica nanoparticles on permeation properties of polyurethane/silica mixed matrix membranes

Application of SiO2 nanoparticles with double layer coverage consist of citric acid and l(+)-ascorbic acid for the production of poly(vinyl chloride)/SiO2 nanocomposite films with enhanced optical and thermal properties

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