Synthesis, Characterization and Optical Properties of Novel Nonlinear Polysilylether

Issam, A. M.; Haris, Mas Rosemal Hakim Mas

doi:10.1007/s10904-009-9301-9

Cited by 17 publications

(16 citation statements)

References 15 publications

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“…The reactions were monitored at regulart ime intervals by using NMR spectroscopy.T he resulting PSEs were purified through the precipitation method, and the details are described in the Experimental Section. Besides, the attribution of four peaks in the 13 CNMR spectrum between d = 128.0 and 140.0 ppm and the appearance of a single peak in the 29 Si NMR spectrum at d = À31.48 ppm confirms the presence of ad iphenylsilyl moiety in the resultant polymer.W eu sed gel permeation chromatography (GPC) to measuret he molecular weight (M n )a s3 300 gmol À1 with ad ispersity ()o f1 .31. The disappearance of the hydroxy peak of IS at d = 2.96 ppm and the silane hydrogen (SiH)p eak at d = 4.92 ppm in the 1 HNMR spectrum confirmed the consumption of the startingm aterials ( Figure S1).…”

Section: Resultsmentioning

confidence: 73%

“…The appearance of six characteristic peaks at d = 71.3, 73.9, 76.0, 78.0, 82.0, and 88.3 ppm in the 13 CNMR spectrum( Figure 2b)i ndicates that the resulting PSE (i)s till possesses the C2 exo and C5 endo configurations. Besides, the attribution of four peaks in the 13 CNMR spectrum between d = 128.0 and 140.0 ppm and the appearance of a single peak in the 29 Si NMR spectrum at d = À31.48 ppm confirms the presence of ad iphenylsilyl moiety in the resultant polymer.W eu sed gel permeation chromatography (GPC) to measuret he molecular weight (M n )a s3 300 gmol À1 with ad ispersity ()o f1 .31.…”

Section: Resultsmentioning

confidence: 73%

“…Glassware was dried overnight before use. 1 H, 13 C, and 29 Si NMR spectra were recorded by using aB ruker AVANCE 500 NMR spectrometer in deuterated chloroform (CDCl 3 )w ith tetramethylsilane (TMS) as the internal reference. FTIR spectroscopy was performed by using a Thermo Scientific Nicolet iS5 FTIR instrument and analyzed with OMNIC 8.2 software.…”

Section: Methodsmentioning

confidence: 99%

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Renewable Isohexide‐Based, Hydrolytically Degradable Poly(silyl ether)s with High Thermal Stability

et al. 2018

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Several degradable poly(silyl ether)s (PSEs) have been synthesized by dehydrogenative cross-coupling between bio-based 1,4:3,6-dianhydrohexitols (isosorbide and isomannide) and commercially available hydrosilanes. An air-stable manganese salen nitrido complex [Mn N(salen-3,5-tBu )] was employed as the catalyst. High-molecular-weight polymer was obtained from isosorbide and diphenylsilane (M up to 17000 g mol ). Thermal analysis showed that these PSEs possessed high thermal stability with thermal decomposition temperatures (T ) of 347-446 °C and glass transition temperatures of 42-120 °C. Structure-property analysis suggested that steric bulk and molecular weight have a significant influence to determine the thermal properties of synthesized polymers. Importantly, these polymers were degraded effectively to small molecules under acidic and basic hydrolysis conditions.

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Section: Resultsmentioning

confidence: 73%

Section: Resultsmentioning

confidence: 73%

Section: Methodsmentioning

confidence: 99%

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Renewable Isohexide‐Based, Hydrolytically Degradable Poly(silyl ether)s with High Thermal Stability

et al. 2018

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“…However, palm-oil-based polyalkyds were prepared, and because of their saturated nature, the drying properties were found to be poor and needed to be improved. 10 Additionally, the mechanical properties of the resins were not up to the level of standard; they were improved in this study. Thus, the aim of our research was to improve the unsaturation of palm oil through a dehydration process.…”

Section: Introductionmentioning

confidence: 71%

Characterization of multiwalled carbon nanotube filled, palm‐oil‐based polyalkyds: Effects of loading and in situ reaction

Islam

Beg

Madusari

2015

J of Applied Polymer Sci

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In this study, the contribution of multiwalled carbon nanotubes (MWCNTs) was studied for the evaluation of the performances of polyalkyd‐based films produced from dehydrated palm oil. Initially, different percentages of MWCNTs, including 0.5, 1.0, and 1.5 wt %, were considered for loading into the resin with the help of sonication. Additionally, a 1.0 wt % loading was considered for in situ conditions during the esterification process to achieve better dispersion and obtain improved properties of the film. The loading was evaluated by different performance tests, such as those of tensile, elongation, pencil hardness, swelling ratio, gel content, wettability, chemical resistivity, adhesion, and surface morphology. The results of mechanical testing showed that the addition of 1.0 wt % MWCNTs enhanced the tensile strength by 50%, whereas in situ conditions were found to be favorable for significantly improving the tensile strength by 75%. Moreover, the wettability, surface morphology, and thermal properties were also found to be in favor of in situ conditions for the dispersion of the MWCNTs. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 42934.

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“…Excessive amount of TiO 2 might act as a barrier that block the linkage between PAni-TiO 2 /Alkyd and FTO glass which affect the adhesion to the glass substrate. [25][26][27]…”

Section: Macromolecular Symposiamentioning

confidence: 99%

Effect of Titanium Dioxide on Adhesion and Conductivity Behavior of Polyaniline/Alkyd Composite for Solar Cell Application

Phang

Ramli²,

Khong

et al. 2018

Macromolecular Symposia

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This study attempts to improve the adhesion and conductivity of polyaniline (PAni) by incorporating an alkyd and titanium dioxide (TiO2), respectively. PAni with different TiO2 content (10, 20, and 40%) are synthesized through chemical oxidation method by using aniline (Ani) monomer, dioctyl sodium sulfosuccinate (AOT) dopant, and ammonium persulphate (APS) oxidant at 0 °C for 24 h. In order to improve the adhesion of PAni‐TiO2 on fluoride doped‐tin oxide (FTO) glass prior to its application as counter electrode (CE) in Dye‐Sensitized Solar Cell (DSSC), a palm oil‐based alkyd is added into PAni‐TiO2 composite. Chemical structures of PAni‐TiO2/Alkyd are confirmed by Fourier transform infrared spectrophotometer (FTIR) and ultraviolet‐visible (UV‐Vis) spectrophotometry analyses. Conductivity measurement is determined by using four point probe method and adhesion test is performed following ASTM D3599. Results showed that conductivity of PAni had significantly improved from 3.53 × 10−3 (without TiO2) to 8.16 × 10−3–6.59 × 10−2 S cm−1 (with TiO2). However, the conductivity of all PAni‐TiO2/Alkyd samples on FTO glass showed high conductivity (6.11–6.32 × 102 S cm−1) and better adhesion behavior on FTO glass except for the sample with 40% of TiO2. The plausible mechanisms between PAni‐TiO2/Alkyd and FTO glass are proposed in this study based on the FTIR and UV‐Vis analyses.

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Synthesis, Characterization and Optical Properties of Novel Nonlinear Polysilylether

Cited by 17 publications

References 15 publications

Renewable Isohexide‐Based, Hydrolytically Degradable Poly(silyl ether)s with High Thermal Stability

Renewable Isohexide‐Based, Hydrolytically Degradable Poly(silyl ether)s with High Thermal Stability

Characterization of multiwalled carbon nanotube filled, palm‐oil‐based polyalkyds: Effects of loading and in situ reaction

Effect of Titanium Dioxide on Adhesion and Conductivity Behavior of Polyaniline/Alkyd Composite for Solar Cell Application

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