Synthesis, morphology and properties of poly(dimethylsiloxane)/poly(n-butyl acrylate) mixed soft block-based copolymers: A new class of thermoplastic elastomer

Muppalla, Ravikumar; Jewrajka, Suresh K.

doi:10.1016/j.polymer.2012.01.057

Cited by 15 publications

(17 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It should be noted that T g1 of PDMS was not obvious in S1, which was presumably due to the relatively lower PDMS content in the copolymer S1 and the relatively restricted movement of the PAPOSS blocks. Similar results have been previously reported that the detection of T g1 in the DSC curves was related to the content of PDMS in the block copolymers [28,29]. Apart from S1, the T g3 values of POSS in S2 and S3 were 84.4 • C and 82.4 • C, respectively, with each about 20 • C higher than that of S1.…”

Section: Microphase Separationsupporting

confidence: 89%

Synthesis of POSS-containing fluorosilicone block copolymers via RAFT polymerization for application as non-wetting coating materials

Zhang

et al. 2015

Progress in Organic Coatings

View full text Add to dashboard Cite

Section: Microphase Separationsupporting

confidence: 89%

Synthesis of POSS-containing fluorosilicone block copolymers via RAFT polymerization for application as non-wetting coating materials

Zhang

et al. 2015

Progress in Organic Coatings

View full text Add to dashboard Cite

“…Surface‐modified oxidatively stable and hydrophobic (water, θ = 103°) (pentablock) PDMS/P n BA/PMMA copolymer containing 11, 58, and 31 wt% of PDMS, P n BA, and PMMA, respectively, was employed for the preparation of Au–Ag NCs (containing various amounts of Au and Ag). The copolymer was synthesized by atom‐transfer radical polymerization . The main advantage of use of (pentablock) PDMS/P n BA/PMMA /Au–Ag NC over (pentablock) PDMS/P n BA/PMMA copolymer/Ag NCs is that the toxicity of the former NC is expected to be less than the toxicity of the later NC owing to better cytocompatibility of Au NPs than that of Ag NPs and relatively lower amount of Ag present in the (pentablock) PDMS/P n BA/PMMA /Au–Ag NC.…”

Section: Resultsmentioning

confidence: 99%

“…Figure shows the variation of θ with the increased mole fraction of Au salt used for the preparation of NCs. The neat (pentablock) PDMS/P n BA/PMMA copolymer ( θ = 103°) surface is more hydrophobic in nature compared to fully poly(meth)acrylate‐based triblock copolymer ( θ = 90°) owing to preferential surface coverage by the oxidatively stable PDMS in the former copolymer . (Pentablock) PDMS/P n BA/PMMA /Au–Ag NCs exhibited relatively lower θ values compared to neat (pentablock) PDMS/P n BA/PMMA copolymer and the effect was more pronounced with increased amount of Au in the NCs.…”

Section: Resultsmentioning

confidence: 99%

“…Poly(methyl methacrylate‐ b‐n ‐butyl acrylate‐ b ‐dimethylsiloxane‐ b ‐poly‐ n ‐butylacrylate‐ b ‐methyl methacrylate) pentablock copolymer (PMMA‐ b ‐PnBA‐ b ‐PDMS‐ b ‐PnBA‐ b ‐PMMA) [(pentablock) PDMS/P n BA/PMMA ] containing 11 wt% of PDMS, 58 wt% of PnBA, and 31 wt% of PMMA with molecular weight of 76,200 g/mol and polydispersity index of 1.26 was synthesized according to the procedure as described in our earlier publication .…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Poly(dimethylsiloxane)-containing thermoplastic elastomer/gold-silver alloy nanocomposites for thermally/oxidatively stable and antimicrobial coating

et al. 2014

Self Cite

View full text Add to dashboard Cite

Polymer materials with embedded silver (Ag) nanoparticle (NP) are of considerable interest owing to their enhanced antimicrobial activity and physical properties compared to host polymer. Antimicrobial and thermally/oxidatively stable coating not only enhances the durability of the coated material but also reduces the growth of bacteria/fungus and thus reduces the chance of infection. For this purpose, we have prepared polydimethylsiloxane‐containing predominantly poly(meth)acrylates‐based pentablock thermoplastic elastomer (TPE)/gold (Au)–Ag alloy nanocomposites (NCs) with antimicrobial activity and enhanced physical properties. In situ simultaneous reduction of appropriate amount of metal salts in the presence of block copolymer produced Au–Ag NPs of size 5–10 nm. Such embedded 5–10 nm sized particles (loading, 0.1–0.2 wt%) improved the mechanical property, thermal/oxidative stability, and antimicrobial activity of the NCs. The NC films also exhibited tunable surface wetting behavior and optical properties. The NC films showed low level of Ag leaching as confirmed by inductively coupled plasma spectrometer and UV–visible spectroscopy. Improved thermal/oxidative resistance of the TPE/Au–Ag alloy NCs enhanced antimicrobial activity, together with low level of leaching characteristic of the embedded NPs deemed suitable for further use of these NCs material for antimicrobial and oxidatively stable coating applications. POLYM. COMPOS., 36:2103–2112, 2015. © 2014 Society of Plastics Engineer

show abstract

“…In the previous study, the block copolymer of PDMS and poly( n ‐butyl acrylate) was synthesized. The block copolymer showed its glass transition around 120 °C . In another study, a polystyrene‐ b ‐PDMS‐ b ‐polystyrene triblock copolymer with the melting point above 200 °C was synthesized .…”

Section: Introductionmentioning

confidence: 99%

Thermoplastic polydimethylsiloxane with l‐phenylalanine‐based hydrogen‐bond networks

Tazawa

Shimojima

Maeda

et al. 2017

J of Applied Polymer Sci

View full text Add to dashboard Cite

Thermoplastic polydimethylsiloxane (PDMS) containing l‐phenylalanine was synthesized by the liquid‐phase synthesis method with an Fmoc‐protected amino acid and by the condensation polymerization. In order to investigate the mechanical and the thermoplastic properties of the PDMS with l‐phenylalanine, the tensile testing and the dynamic mechanical analysis (DMA) were conducted. From the results of the tensile testing, it was found that the stress at break of the PDMS with l‐phenylalanine nearly became seven times higher than that of the PDMS without l‐phenylalanine. The DMA results revealed that the PDMS could maintain its storage modulus for three heating cycles, while the melting temperature was also kept at ∼120 °C. Moreover, the mechanical property was analyzed through two remolding cycles, and it was found that the PDMS could almost maintain its mechanical property after the heat remolding. Finally, it was found that the PDMS also possessed some self‐healing property, where the Young's modulus of the cut PDMS could maintain at least 70% of its original Young's modulus after contact and self‐healing. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45419.

show abstract

Synthesis, morphology and properties of poly(dimethylsiloxane)/poly(n-butyl acrylate) mixed soft block-based copolymers: A new class of thermoplastic elastomer

Cited by 15 publications

References 20 publications

Synthesis of POSS-containing fluorosilicone block copolymers via RAFT polymerization for application as non-wetting coating materials

Synthesis of POSS-containing fluorosilicone block copolymers via RAFT polymerization for application as non-wetting coating materials

Poly(dimethylsiloxane)-containing thermoplastic elastomer/gold-silver alloy nanocomposites for thermally/oxidatively stable and antimicrobial coating

Thermoplastic polydimethylsiloxane with l‐phenylalanine‐based hydrogen‐bond networks

Contact Info

Product

Resources

About