Deproteinised natural rubber latex grafted poly(dimethylaminoethyl methacrylate) – poly(vinyl alcohol) blend membranes: Synthesis, properties and application

Jayadevan, Janisha; Alex, Rosamma; Gopalakrishnapanicker, Unnikrishnan

doi:10.1016/j.ijbiomac.2017.10.042

Cited by 29 publications

(12 citation statements)

References 52 publications

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“…For the test, the films with a dimension of 4 cm × 1 cm (length × width) were measured with a crosshead speed of 3 mm/min. The length and width of the samples were determined according to the mold we used, and the stretching rate was suggested by the manufacturer’s protocol and validated by previous reports [ 44 , 45 , 46 ]. At least 8 replicates of an individual film were examined.…”

Section: Methodsmentioning

confidence: 99%

Polydopamine-Assisted Silver Nanoparticle Self-Assembly on Sericin/Agar Film for Potential Wound Dressing Application

Liu

Cai

Wang

et al. 2018

IJMS

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Silver nanoparticles (AgNPs) are extensively applied for their broad-spectrum and excellent antibacterial ability in recent years. Polydopamine (PDA) has great advantages for synthesizing large amounts of AgNPs, as it has multiple sites for silver ion binding and phenolic hydroxyl structure to reduce silver ions to AgNPs. Here, we mixed sericin and agar solution and dried at 65 °C to prepare a sericin (SS)/Agar composite film, and then coated polydopamine (PDA) on the surface of SS/Agar film by soaking SS/Agar film into polydopamine solution, subsequently synthesizing high-density AgNPs with the assistance of PDA to yield antibacterial AgNPs-PDA- SS/Agar film. Scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) spectra indicated the successful synthesis of high-density AgNPs on the surface of PDA-SS/Agar film. PDA coating and AgNPs modification did not affect the structure of sericin and agar. Furthermore, water contact angle, water absorption and mechanical property analysis showed that AgNPs-PDA-SS/Agar film had excellent hydrophilicity and proper mechanical properties. Inhibition zone and growth curve assays suggested the prepared film had excellent and long-lasting antibacterial ability. In addition, it had excellent cytocompatibility on the fibroblast NIH/3T3 cells. The film shows great potential as a novel kind of wound dressing.

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Section: Methodsmentioning

confidence: 99%

Polydopamine-Assisted Silver Nanoparticle Self-Assembly on Sericin/Agar Film for Potential Wound Dressing Application

Liu

Cai

Wang

et al. 2018

IJMS

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“…[17] Furthermore, strong band at 1,463 cm −1 showed the CH 2 bending vibrations, while the bands at 2,949, 2,825, and 2,773 cm −1 indicated C H stretching vibrations in the CH 2 and N(CH 3 ) 2 groups. [18] To confirm the graft copolymer structure, NMR analysis was also used. Figure 1b displays the 13 C-NMR spectrum of the CRG-g-PDMA copolymer.…”

Section: Reversibility Of Swellingdeswelling Behaviormentioning

confidence: 99%

pH/temperature‐responsive poly(dimethylaminoethyl methacrylate) grafted κ‐carrageenan copolymer: Synthesis and physicochemical properties

Geyik

Işıklan

2020

J of Applied Polymer Sci

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κ‐Carrageenan‐graft‐poly(dimethylaminoethyl methacrylate) (CRG‐g‐PDMA) was synthesized via free‐radical copolymerization under microwave irradiation. 13C‐Nuclear magnetic resonance spectroscopy (13C‐NMR), fourier‐transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and X‐ray diffraction (XRD) methods were used for characterization of the CRG‐g‐PDMA structure. The effect of reaction variables including the concentrations of the initiator and dimethylaminoethyl methacrylate (DMA) as well as the microwave irradiation time and power on graft ratio and conversion was investigated, and their highest values were obtained to be 179 and 76%, respectively. The lower critical solution temperatures (LCSTs) of the CRG‐g‐PDMA copolymers were determined at various pH conditions, and their value in distilled water was found as 47°C. Besides, the swelling capacity of the copolymers under different pH levels was investigated and it was seen that the swelling capacity of the copolymer increased with the decrease in the pH value of the medium. The CRG‐g‐PDMA copolymer exhibited excellent swelling performance in acidic pH conditions and possessed responsiveness to pH and temperature stimuli.

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“…Compared with the SBR vulcanizates, the enhancement of the tensile strength and modulus at 100% elongation in the SBR-g-D 4 vulcanizates may be due to the higher crosslinking degree than in SBR, that is, the crosslinking degree of the SBR-g-D 4 vulcanizates can be mainly attributed to two contributions: sulfur crosslinkage and D 4 crosslinkage; these lead to the strengthening of the interface which could subsequently promote an easier stress transfer across the molecular chains. 49 At the same time, the higher crosslinking density of SBR-g-D 4 increases the rigidity of rubber molecular chains, resulting in a decrease in the elongation at break.…”

Section: Curing Characteristics Of Sbr-g-d 4 Vulcanizatesmentioning

confidence: 99%

Effects of octamethylcyclotetrasiloxane grafting and in situ silica particle generation on the curing and mechanical properties of a styrene butadiene rubber composite

Chen

Zhang

2019

RSC Adv.

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The reinforcement of octamethylcyclotetrasiloxane (D 4 ) grafted styrene butadiene rubber ) with in situ generated silica was performed using the sol-gel reaction of tetraethoxysilane (TEOS) in latex. The characterization of SBR-g-D 4 and in situ generated silica reinforced SBR-g-D 4 was investigated by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. The grafting efficiency of the styrene butadiene rubber (SBR) was determined by a gravimetric method. It was found that the constant silicon content and the grafting efficiency of SBR were 1.72% and 0.13 wt% when the weight ratio of D 4 to SBR was 0.20. The effects of the D 4 and in situ generated silica content on the curing characteristics, mechanical properties and morphology of SBR latex were investigated. The mechanical properties of in situ generated silica reinforced vulcanizates were improved significantly compared to raw SBR vulcanizate when the in situ generated silica content was 18.05%. Compared with silica reinforced SBR-g-D 4 , the tensile strength, wet skid resistance and rolling resistance of the in situ generated silica reinforced SBR-g-D 4 were better. This is because of the higher crosslinking degree in the SBR-g-D 4 matrix and the strong chemical bond between SBR-g-D 4 molecular chains and in situ generated silica. Scanning electron microscopy analysis revealed good silica filler dispersion in all the reinforced SBR-g-D 4 vulcanizates.

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Deproteinised natural rubber latex grafted poly(dimethylaminoethyl methacrylate) – poly(vinyl alcohol) blend membranes: Synthesis, properties and application

Cited by 29 publications

References 52 publications

Polydopamine-Assisted Silver Nanoparticle Self-Assembly on Sericin/Agar Film for Potential Wound Dressing Application

Polydopamine-Assisted Silver Nanoparticle Self-Assembly on Sericin/Agar Film for Potential Wound Dressing Application

pH/temperature‐responsive poly(dimethylaminoethyl methacrylate) grafted κ‐carrageenan copolymer: Synthesis and physicochemical properties

Effects of octamethylcyclotetrasiloxane grafting and in situ silica particle generation on the curing and mechanical properties of a styrene butadiene rubber composite

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