Synthesis and thermal properties of fully aromatic polysilarylenesiloxanes

ABSTRACT A new type of fully aromatic polysilarylenesiloxanes showing high _T_g was synthesized _via_ the solution polymerization from the bis(diphenylhydroxysilyl)arylene monomers. And the

thermal properties of these monomers and polymers were investigated by using differential scanning calorimetry (DSC), and thermogravimetry analysis (TGA). The monomers containing the

diphenylsilanol group showed higher melting temperatures and thermal degradation temperatures than those of the monomers containing the dimethylsilanol group. The obtained fully aromatic

polysilarylenesiloxanes were insoluble powders, and showed no weight loss in air below 500 °C. No glass transition was detected according to the DSC measurements, whereas 3A and 3B showed

melting points at 323 and 391 °C, respectively. However, 3B held solid-state at melting point. It would be caused by a cross-linking reaction occurring with melting simultaneously. It was

found that these were the thermally stable polymer-solids consisted of the organosiloxane polymers. SIMILAR CONTENT BEING VIEWED BY OTHERS EFFECT OF SUBSTITUTED POSITIONS OF ACETYLENE GROUPS

IN BENZENE RINGS ON THE PROPERTIES OF POLY(SILANE ARYLETHER ARYLACETYLENE)S Article 13 July 2023 SIMPLE LINEAR IONIC POLYSILOXANE SHOWING UNEXPECTED NANOSTRUCTURE AND MECHANICAL PROPERTIES

Article Open access 03 September 2021 ELECTROCHEMICAL TOPOLOGICAL TRANSFORMATION OF POLYSILOXANES Article Open access 15 September 2021 ARTICLE PDF REFERENCES * T. M. Birshtein and O. B.

Ptitsyn, “Conformations of Macromolecules,” Interscience Publishers, New York, 1966, Chapt. 7. * P. J. Flory, “Statistical Mechanics of Chain Molecules,” Interscience Publishers, New York,

1969, Chapt. 5. * P. R. Dvornic and R. W. Lenz, “High Temperature Siloxane Elastomers,” Hüthing & Wepf, Basel, 1990, Chapt. II. * C. C. Currie and B. F. Smith, _Ind. Eng. Chem._, 42,

2457 (1950). * G. Grant 3rd and C. C. Cure, _Mech. Eng._, 73, 311 (1951). * O. B. Young and C. E. Dickerman, _Ind. Eng. Chem._, 46, 364 (1954). * K. Nagai, T. Masuda, T. Nakagawa, B. D.

Freeman, and I. Pinnau, _Prog. Polym. Sci._, 26, 721 (2001). * R. L. Merker and M. J. Scott, _J. Polym. Sci., A_, 2, 15 (1964). * N. Okui, H. M. Li, and J. H. Magill, _Polymer_, 19, 411

(1978). * M. Ikeda, T. Nakamura, Y. Nagase, K. Ikeda, and Y. Sekine, _J. Polym. Sci., Polym. Chem. Ed._, 19, 2595 (1981). * R. L. Merker, M. J. Scott, and G. G. Haberland, _J. Polym. Sci.,

A_, 2, 31 (1964). * W. R. Dunnavant, _Inorg. Macromol. Rev._, 1, 165 (1971). * J. M. Funt, R. D. Parekh, J. H. Magill, and Y. T. Shah, _J. Polym. Sci., Polym. Chem. Ed._, 13, 2181 (1975). *

C. U. Pittman. Jr., W. J. Patterson, and S. P. Mcmanus, _J. Polym. Sci., Polym. Chem. Ed._, 14, 1715 (1976). * P. R. Dvornic and R. W. Lenz, _J. Polym. Sci., Polym. Chem. Ed._, 20, 951

(1982). * Y. Nagase, T. Masubuchi, K. Ikeda, and Y. Sekine, _Polymer_, 22, 1607 (1981). * Y. Nagase, K. Ikeda, and Y. Sekine, _Polymer_, 23, 1646 (1982). * Y. Nagase, T. Nakamura, A. Misawa,

K. Ikeda, and Y. Sekine, _Polymer_, 24, 457 (1983). * Y. Nagase, T. Fukatsu, K. Ikeda, and Y. Sekine, _Polymer_, 24, 463 (1983). * L. W. Breed, R. L. Elliott, and M. E. Whitehead, _J.

Polym. Sci., A-1_, 5, 2745 (1967). * R. E. Burks Jr., E. R. Covington, M. V. Jackson, and J. E. Curry, _J. Polym. Sci., Polym. Chem. Ed._, 11, 319 (1973). * P. R. Dvornic and R. W. Lenz,

_Polymer_, 24, 763 (1983). * H. D. Zhu, S. W. Kantor, and W. J. MacKnight, _Macromolecules_, 31, 850 (1998). * P. R. Dvornic, H. J. Perpall, P. C. Uden, and R. W. Lenz, _J. Polym. Sci.,

Polym. Chem. Ed._, 27, 3503 (1989). * Y. Kawakami, Y. Li, Y. Liu, M. Seino, C. Pakjamsai, M. Oishi, Y. H. Cho, and I. Imae, _Macromol. Res._, 12, 156 (2004). * Y. Li and Y. Kawakami,

_Macromolecules_, 32, 3540 (1999). * J. Y. Moon, T. Miura, I. Imae, D. W. Park, and Y. Kawakami, _Silicon Chem._, 2, 139 (2002). * T. Homma, _Mater. Sci. Eng._, R23, 243 (1998). * M. Kohno,

_J. Photopolym. Sci. Technol._, 12, 189 (1999). * K. Maex, M. R. Baklanov, D. Shamiryan, F. Lacopi, S. H. Brongersma, and Z. S. Yanovitskaya, _J. Appl. Phys._, 93, 8793 (2003). * M. I.

Buzin, M. V. Gerasimov, E. S. Obolonkova, and V. S. Papkov, _J. Polym. Sci., Part A: Polym. Chem._, 35, 1973 (1997). * H. N. Beck and R. G. Chaffee, _J. Chem. Eng. Data_, 8, 602 (1963). * L.

W. Breed and R. L. Elliott, _J. Organomet. Chem._, 9, 188 (1967). * V. Bazant and M. Cerný, _Collect. Czech. Chem. Commun._, 39, 1728 (1974). * N. Okui and J. H. Magill, _Polymer_, 18, 1152

(1977). Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Applied Chemistry Lab., Ebara Research Co., Ltd., 4-2-1 Honfujisawa, Fujisawa, 251-8502, Japan Hitoshi Ito * Sagami

Chemical Research Center, 2743-1, Hayakawa, Ayase, 251-1193, Japan Eiichi Akiyama * Department of Applied Chemistry, School of Engineering, Tokai University, 1117 Kitakaname, Hiratsuka,

259-1292, Japan Yu Nagase, Akiko Yamamoto & Saburo Fukui Authors * Hitoshi Ito View author publications You can also search for this author inPubMed Google Scholar * Eiichi Akiyama View

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Yamamoto View author publications You can also search for this author inPubMed Google Scholar * Saburo Fukui View author publications You can also search for this author inPubMed Google

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Synthesis and Thermal Properties of Fully Aromatic Polysilarylenesiloxanes. _Polym J_ 38, 109–116 (2006). https://doi.org/10.1295/polymj.38.109 Download citation * Received: 05 July 2005 *

Accepted: 07 September 2005 * Published: 15 February 2006 * Issue Date: 01 February 2006 * DOI: https://doi.org/10.1295/polymj.38.109 SHARE THIS ARTICLE Anyone you share the following link

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content-sharing initiative KEYWORDS * Polysilarylenesiloxanes * Thermal Stability * Solution Polymerization * Glass Transition * High-temperature Coatings