A structural study of silicon-based interpenetrating polymer networks by solid state 1H and 13C NMR spectroscopy

Kobayashi, Masatoshi; Kuroki, Shigeki; Ando, Isao; Yamauchi, Kazuo; Kimura, Hirokazu; Okita, Kohei; Tsumura, Manabu; Sogabe, Keisuke

doi:10.1016/s0022-2860(01)00776-1

Cited by 9 publications

(5 citation statements)

References 7 publications

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“…This result indicates that the thiophene moiety penetrates into the siloxane reactive sites to form interpenetrated polymer network. In a similar manner, Kobayashi et al 23 explained the NMR of silicone based IPN and confirmed the formation of IPN through intermolecular diffusion. Figure 7 shows the AFM surface morphologies of the silicone-PPy and silicone-PTh, IPNs.…”

Section: Nmr Spectroscopymentioning

confidence: 72%

Synthesis and characterization of high temperature resistance interpenetrating polymer network

Kirubaharan

Palraj

Selvaraj

et al. 2010

J of Applied Polymer Sci

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Interpenetrating polymer network (IPN) polymer has been prepared by blending silicone resin polymer with the organic polymers such as polypyrrole [PPy] and polythiophene [PTh]. The IPNs were characterized by FTIR, NMR, and TGA/DSC analysis. The heat resistance performance of these IPNs were evaluated as per ASTM D2485. The result indicates that the IPN based on silicone-PTh has got superior heat resistant property than silicone-PPy. The electrochemical impedance measurements showed that the corrosion resistances of both the IPNs was similar. AFM morphological study confirms the influence of PPy/PTh on silicone polymer in forming smooth heterogeneous micro-structured IPNs.

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Section: Nmr Spectroscopymentioning

confidence: 72%

Synthesis and characterization of high temperature resistance interpenetrating polymer network

Kirubaharan

Palraj

Selvaraj

et al. 2010

J of Applied Polymer Sci

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“…Since Si(OCH 3 ) 3 groups may hydrolyze easily in acidic condition, the pH value in the system was adjusted [36,37]. When the Si(OCH 3 ) 3 groups have hydrolyzed to form Si-OH in acid condition, the group of Si-OH will participate in two kinds of reactions: one is the condensation of Si-OH which could generate the Si-O-Si groups.…”

Section: Effects Of Amp-pdms Concentrationmentioning

confidence: 99%

RETRACTED: Synthesis and characterization of an alkoxy and methacryloxy propyl terminated polydimethylsiloxane for uses in the core–shell latex particles

Arab

Naghash

2015

Progress in Organic Coatings

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“…The sample calcined at 800 °C showed a signal at −7.6 ppm that was assigned to the Si−CH 3 groups formed by the cleavage of crosslinking units. 47 The broad signal at around 130 ppm with spinning side bands (176 and 84 ppm) was assigned to the aromatic carbon atoms, 45,48,49 and the formation of a freecarbon phase at 800 °C was indicated by the partial decomposition of Si−CH 3 groups and/or organic linking units. 41,47 Figure 5 shows the solid-state 29 Si MAS-NMR spectra of SiOC gels using the same samples measured for the 13 C CP MAS-NMR spectra.…”

Section: Acs Omegamentioning

confidence: 99%

Tailoring a Thermally Stable Amorphous SiOC Structure for the Separation of Large Molecules: The Effect of Calcination Temperature on SiOC Structures and Gas Permeation Properties

et al. 2018

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A SiOC membrane with high oxidative stability for gas separation was tailored by utilizing vinyltrimethoxysilane, triethoxysilane, and 1,1,3,3-tetramethyldisiloxane as Si precursors. Amorphous SiOC networks were formed via the condensation of Si–OH groups, the hydrosilylation of Si–H and Si–CH=CH 2 groups, and a crosslinking reaction of Si–CH 3 groups, respectively. The crosslinking of Si–CH 3 groups at temperatures ranging from 600 to 700 °C under a N 2 atmosphere was quite effective in constructing a Si–CH 2 –Si unit without the formation of mesopores, which was confirmed by the results of N 2 adsorption and by the gas permeation properties. The network pore size of the SiOC membrane calcined at 700 °C under N 2 showed high oxidative stability at 500 °C and was appropriate for the separation of large molecules (H 2 /CF 4 selectivity: 640, H 2 /SF 6 : 2900, N 2 /CF 4 : 98). A SiOC membrane calcined at 800 °C showed H 2 /N 2 selectivity of 62, which was approximately 10 times higher than that calcined at 700 °C because the SiOC networks were densified by the cleavage and redistribution reactions of Si–C and Si–O groups.

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A structural study of silicon-based interpenetrating polymer networks by solid state 1H and 13C NMR spectroscopy

Cited by 9 publications

References 7 publications

Synthesis and characterization of high temperature resistance interpenetrating polymer network

Synthesis and characterization of high temperature resistance interpenetrating polymer network

RETRACTED: Synthesis and characterization of an alkoxy and methacryloxy propyl terminated polydimethylsiloxane for uses in the core–shell latex particles

Tailoring a Thermally Stable Amorphous SiOC Structure for the Separation of Large Molecules: The Effect of Calcination Temperature on SiOC Structures and Gas Permeation Properties

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