Tailored synthesis and fundamental characterization of organic-inorganic hybrid gels by means of a hydrosilylation reaction

Naofumi Naga, Emiko Oda, Akinori Toyota, Kazuyuki Horie, Hidemitsu Furukawa

研究成果: Article

23 引用 (Scopus)

抄録

Organic-inorganic hybrid gels have been synthesized from siloxane, 1,3,5.7-tetramethylcyclotetrasiloxane (TMCTS), tetrakis(dimethylsilyloxy)silane (TDSS) or silsesquioxane. 1,3,5,7,9,11,13,15-octakis(dimethylsilyloxy)- pentacyclo-[9,5,1,1,1,1]octasilsesquioxane (POSS), as cross-linking reagents and α,ω-nonconjugated dienes, 1.5-hexadiene (HD), 1,7-octadiene (OD) and 1,9-decadiene CDD), using a hydrosilylation reaction with a Pt catalyst. The network structures of the resulting gels were investigated by means of a novel scanning microscopic light scattering system. The structures of the crosslinking reagent and the length of the α,ω-non-conjugated dienes strongly affected the formation and network structures of the resulting gels. The critical gel concentration decreased when the molecular length of the non-conjugated diene used was increased. The structures and Si-H group numbers of the crosslinking reagents affected the critical gel concentration, and its values decreased in the following order: TDSS > TMCTS > POSS. The mesh size distribution in the network structure was quantitatively characterized using the light scattering system and almost presupposed sizes with quite narrow size distributions were attained in the gels from TMCTS-HD, OD systems and TDSS-OD systems. On the other hand, the gels derived from POSS or DD showed larger mesh sizes than expected.

元の言語English
ページ(範囲)627-635
ページ数9
ジャーナルMacromolecular Chemistry and Physics
207
発行部数6
DOI
出版物ステータスPublished - 2006 3 24

Fingerprint

Hydrosilylation
Gels
gels
Cross-Linking Reagents
Silanes
synthesis
dienes
silanes
hexadiene
reagents
crosslinking
Light scattering
Crosslinking
mesh
light scattering
Siloxanes
siloxanes
Scanning
catalysts
Catalysts

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry

これを引用

Tailored synthesis and fundamental characterization of organic-inorganic hybrid gels by means of a hydrosilylation reaction. / Naga, Naofumi; Oda, Emiko; Toyota, Akinori; Horie, Kazuyuki; Furukawa, Hidemitsu.

:: Macromolecular Chemistry and Physics, 巻 207, 番号 6, 24.03.2006, p. 627-635.

研究成果: Article

Naga, Naofumi ; Oda, Emiko ; Toyota, Akinori ; Horie, Kazuyuki ; Furukawa, Hidemitsu. / Tailored synthesis and fundamental characterization of organic-inorganic hybrid gels by means of a hydrosilylation reaction. :: Macromolecular Chemistry and Physics. 2006 ; 巻 207, 番号 6. pp. 627-635.
@article{b2d48015e3274c6bb3e21452f853365e,
title = "Tailored synthesis and fundamental characterization of organic-inorganic hybrid gels by means of a hydrosilylation reaction",
abstract = "Organic-inorganic hybrid gels have been synthesized from siloxane, 1,3,5.7-tetramethylcyclotetrasiloxane (TMCTS), tetrakis(dimethylsilyloxy)silane (TDSS) or silsesquioxane. 1,3,5,7,9,11,13,15-octakis(dimethylsilyloxy)- pentacyclo-[9,5,1,1,1,1]octasilsesquioxane (POSS), as cross-linking reagents and α,ω-nonconjugated dienes, 1.5-hexadiene (HD), 1,7-octadiene (OD) and 1,9-decadiene CDD), using a hydrosilylation reaction with a Pt catalyst. The network structures of the resulting gels were investigated by means of a novel scanning microscopic light scattering system. The structures of the crosslinking reagent and the length of the α,ω-non-conjugated dienes strongly affected the formation and network structures of the resulting gels. The critical gel concentration decreased when the molecular length of the non-conjugated diene used was increased. The structures and Si-H group numbers of the crosslinking reagents affected the critical gel concentration, and its values decreased in the following order: TDSS > TMCTS > POSS. The mesh size distribution in the network structure was quantitatively characterized using the light scattering system and almost presupposed sizes with quite narrow size distributions were attained in the gels from TMCTS-HD, OD systems and TDSS-OD systems. On the other hand, the gels derived from POSS or DD showed larger mesh sizes than expected.",
keywords = "α,ω-non-conjugated dienes, Hydrosilylation, Organic-inorganic hybrid gels, Scanning microscopic light scattering, Siloxanes, Silsesquioxanes",
author = "Naofumi Naga and Emiko Oda and Akinori Toyota and Kazuyuki Horie and Hidemitsu Furukawa",
year = "2006",
month = "3",
day = "24",
doi = "10.1002/macp.200500501",
language = "English",
volume = "207",
pages = "627--635",
journal = "Macromolecular Chemistry and Physics",
issn = "1022-1352",
publisher = "Wiley-VCH Verlag",
number = "6",

}

TY - JOUR

T1 - Tailored synthesis and fundamental characterization of organic-inorganic hybrid gels by means of a hydrosilylation reaction

AU - Naga, Naofumi

AU - Oda, Emiko

AU - Toyota, Akinori

AU - Horie, Kazuyuki

AU - Furukawa, Hidemitsu

PY - 2006/3/24

Y1 - 2006/3/24

N2 - Organic-inorganic hybrid gels have been synthesized from siloxane, 1,3,5.7-tetramethylcyclotetrasiloxane (TMCTS), tetrakis(dimethylsilyloxy)silane (TDSS) or silsesquioxane. 1,3,5,7,9,11,13,15-octakis(dimethylsilyloxy)- pentacyclo-[9,5,1,1,1,1]octasilsesquioxane (POSS), as cross-linking reagents and α,ω-nonconjugated dienes, 1.5-hexadiene (HD), 1,7-octadiene (OD) and 1,9-decadiene CDD), using a hydrosilylation reaction with a Pt catalyst. The network structures of the resulting gels were investigated by means of a novel scanning microscopic light scattering system. The structures of the crosslinking reagent and the length of the α,ω-non-conjugated dienes strongly affected the formation and network structures of the resulting gels. The critical gel concentration decreased when the molecular length of the non-conjugated diene used was increased. The structures and Si-H group numbers of the crosslinking reagents affected the critical gel concentration, and its values decreased in the following order: TDSS > TMCTS > POSS. The mesh size distribution in the network structure was quantitatively characterized using the light scattering system and almost presupposed sizes with quite narrow size distributions were attained in the gels from TMCTS-HD, OD systems and TDSS-OD systems. On the other hand, the gels derived from POSS or DD showed larger mesh sizes than expected.

AB - Organic-inorganic hybrid gels have been synthesized from siloxane, 1,3,5.7-tetramethylcyclotetrasiloxane (TMCTS), tetrakis(dimethylsilyloxy)silane (TDSS) or silsesquioxane. 1,3,5,7,9,11,13,15-octakis(dimethylsilyloxy)- pentacyclo-[9,5,1,1,1,1]octasilsesquioxane (POSS), as cross-linking reagents and α,ω-nonconjugated dienes, 1.5-hexadiene (HD), 1,7-octadiene (OD) and 1,9-decadiene CDD), using a hydrosilylation reaction with a Pt catalyst. The network structures of the resulting gels were investigated by means of a novel scanning microscopic light scattering system. The structures of the crosslinking reagent and the length of the α,ω-non-conjugated dienes strongly affected the formation and network structures of the resulting gels. The critical gel concentration decreased when the molecular length of the non-conjugated diene used was increased. The structures and Si-H group numbers of the crosslinking reagents affected the critical gel concentration, and its values decreased in the following order: TDSS > TMCTS > POSS. The mesh size distribution in the network structure was quantitatively characterized using the light scattering system and almost presupposed sizes with quite narrow size distributions were attained in the gels from TMCTS-HD, OD systems and TDSS-OD systems. On the other hand, the gels derived from POSS or DD showed larger mesh sizes than expected.

KW - α,ω-non-conjugated dienes

KW - Hydrosilylation

KW - Organic-inorganic hybrid gels

KW - Scanning microscopic light scattering

KW - Siloxanes

KW - Silsesquioxanes

UR - http://www.scopus.com/inward/record.url?scp=33645669439&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645669439&partnerID=8YFLogxK

U2 - 10.1002/macp.200500501

DO - 10.1002/macp.200500501

M3 - Article

AN - SCOPUS:33645669439

VL - 207

SP - 627

EP - 635

JO - Macromolecular Chemistry and Physics

JF - Macromolecular Chemistry and Physics

SN - 1022-1352

IS - 6

ER -