New Synthesis Method of Poly(diphenylsilylenemethylene) Thin Films

Rossignol, Fabrice; Nakata, Yoshinori; Nagai, Hiroki; Konno, S.; Okutani, Takeshi; Suzuki, Masaaki; Kushibiki, Nobuo; Murakami, Masashi; Ogawa, Teiichiro

doi:10.1021/cm980274+

Cited by 9 publications

(14 citation statements)

References 5 publications

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“…This thermal polymerization was accelerated by metal particles and exhibited a strong dependency on the metal species. The film thickness did not remain constant during heat treatment, as was reported in a previous communication . The TPDC polymerization and re-evaporation occur competitively during the heating above the TPDC melting temperature.…”

Section: Discussionsupporting

confidence: 57%

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Fabrication of Poly(diphenylsilylenemethylene) and Poly(diphenylsiloxane) Thin Films Using Fine Metal Particles

Rossignol¹,

Nakata²,

Nagai³

et al. 1999

Chem. Mater.

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A new polymerization technique based on the use of sputtered metal particles for the thermal ring-opening polymerization of 1,1,3,3-tetraphenyl-1,3-disilacyclobutane (TPDC) was developed. This method facilitates the synthesis of polydiphenylsilylenemethylene (PDPhSM) thin films which are difficult to make by conventional methods because of their insolubility and high melting point. TPDC was first evaporated on silicon substrates and then exposed to metal particle deposition by sputtering prior to heat treatment. The catalytic activities of Pt, Pt/Pd, Au, Cu, and Ag particles were examined. The chemical structure of the film was basically the same, whatever the kind of metal used. However, the polymerization efficiency and film crystallinity depended greatly on the kind of metal under the same sputtering and heating conditions. The parts of the initial TPDC films that were not subjected to metal sputtering were entirely evaporated from the films without any polymerization. This phenomenon allowed us to make small polymer patterns. This method was also applicable to the ring-opening polymerization of hexaphenylcyclotrisiloxane.

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Section: Discussionsupporting

confidence: 57%

“…The fabrication method of the polymer films was described briefly in a previous communication . It included four stages:…”

Section: Methodsmentioning

confidence: 99%

Fabrication of Poly(diphenylsilylenemethylene) and Poly(diphenylsiloxane) Thin Films Using Fine Metal Particles

Rossignol¹,

Nakata²,

Nagai³

et al. 1999

Chem. Mater.

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“…Further study will be needed to clarify this phenomenon. In addition, comparing the present results with Rossignol's investigations [5] , it is found that the polymerization effi ciencies of pulsed laser ablated metal nanoparticles are higher than those of D C sputtered metal nanoparticles except Au although the mean diameters of pulsed laser ablated metal nanoparticles are bigger than those of D C sputtered metal nanoparticles. The reason may be that the concentration of metal nanoparticles deposited by pulsed laser ablation is much higher than that deposited by D C sputtering.…”

Section: Resultssupporting

confidence: 74%

“…However, it is rather difficult to make thin films because it is insoluble in most solvents and exhibits high melting point. For this reason, F Rossignol et al [5][6] developed a new technique for the ring-opening polymerization of 1,1,3,3-tetraphenyl-1,3-disilacyclobu-tane (TPDC) to synthesize PDPhSM thin films containing metal nanoparticles generated by D C sputtering. Nevertheless, there exist some limitations, e g, only few kinds of metal nanoparticles such as Pt, Au, Ag and Cu noble metals could be deposited by this method.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of metal/poly(diphenylsilylenemethylene) nanocomposite thin films by pulsed laser ablation

Song

Wang

Jiang

2015

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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A new technique to synthesize poly(diphenylsilylenemethylene) (PDPhSM) matrix nanocomposite thin fi lms containing metal nanoparticles such as Ni, Al, Zn, and W produced by pulsed laser ablation has been developed. First, 1,1,3,3-tetra-phenyl-1,3-disilacyclobutane (TPDC) fi lms were deposited on 4 cm 2 silicon substrates cut from c-Si wafers by conventional vacuum evaporation under a pressure of 4.0×10 3 Pa; then metal nanoparticles were deposited onto the TPDC fi lms by pulsed laser ablation; fi nally the TPDC fi lms with metal nanoparticles were heated in an electric furnace in an air atmosphere at 553 K for 10 min to induce ring-opening polymerization of TPDC. The results indicate that it is easy to synthesize metal/ PDPhSM nanocomposite thin fi lms by pulsed laser ablation. The morphologies and size of metal nanoparticles are closely related to the kinds of metal. Also, the polymerization efficiency depends on the kinds of metal nanoparticles deposited on the TPDC monomer fi lms by pulsed laser ablation. In addition, The laser ablated metal nanoparticles penetrate into the TPDC monomer fi lms during pulsed laser ablation while the DC sputtered metal nanoparticles just lay on the surface of TPDC fi lms. SONG Renguo(宋仁国): Prof.; Ph D;

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“…However, it is very difficult to fabricate thin films because PDPhSM is insoluble in most solvents and exhibiting high melting point. Recently, Rossignol et al [2][3][4] found a new ring-opening polymerization method of cyclic organosilicon compound induced by dc sputtered metal nanoparticles. However, there exist some disadvantages such as only a few kinds of metal nanoparticles could be deposited in this method.…”

Section: Introductionmentioning

confidence: 99%

Investigation of metal nanoparticles produced by laser ablation and their catalytic activity

Song¹,

Yamaguchi²,

Nishimura³

et al. 2007

Applied Surface Science

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New Synthesis Method of Poly(diphenylsilylenemethylene) Thin Films

Cited by 9 publications

References 5 publications

Fabrication of Poly(diphenylsilylenemethylene) and Poly(diphenylsiloxane) Thin Films Using Fine Metal Particles

Fabrication of Poly(diphenylsilylenemethylene) and Poly(diphenylsiloxane) Thin Films Using Fine Metal Particles

Synthesis of metal/poly(diphenylsilylenemethylene) nanocomposite thin films by pulsed laser ablation

Investigation of metal nanoparticles produced by laser ablation and their catalytic activity

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