Preparation and characterization of a novel organopolysilane. (3,3,3-Trifluoropropyl)methylpolysilane

Fujino, Masaie; Hisaki, Tomoko; Fujiki, Michiya; Matsumoto, Nobuo

doi:10.1021/ma00029a011

Cited by 48 publications

(58 citation statements)

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“…It should be mentioned that the use of borazine as a promoter of PMS was significantly more efficient than polyborazine. In addition, the UV maximum absorption wavelength l max showed a shift to longer wavelength from an initial 360 nm for the PMS feed stock to 370 nm for a borazine treated PMS sample heated at 70 8C for 1 h, and to 375 nm after 3 h. This indicates increased numbers of PMS repeating units in the borazine treated PMS, which is consistent with the literature [18]. Fig.…”

Section: Resultssupporting

confidence: 90%

Efficient curing of polymethylsilane by borazine and reaction mechanism study

Cao

Kim

2003

Journal of Organometallic Chemistry

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Section: Resultssupporting

confidence: 90%

Efficient curing of polymethylsilane by borazine and reaction mechanism study

Cao

Kim

2003

Journal of Organometallic Chemistry

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“…This selection was based on MF's experience in the area of fluoroalkylated polysilane, namely (3,3,3-trifluoropropyl)methylpolysilane. 50 Also, the motivation to pursue this work was further boosted by the fact that carbon backbone polymers containing fluorine are known to exhibit ferroelectricity and pyroelectricity along with water and oil repellency. Thus, MF decided to investigate the impact of these fluorinated side-chains on the photophysical pattern of these polysilanes.…”

Section: Highlightmentioning

confidence: 99%

Nonclassical forces: Seemingly insignificant but a powerful tool to control macromolecular structures

Fujiki

Saxena

2008

J. Polym. Sci. A Polym. Chem.

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Strong chemical forces such as covalent and ionic bonds are responsible for building discrete molecules, nature dwells on noncovalent forces weaker by three orders in magnitude, like the hydrophobic effect, hydrogen bonding, and van der Waals forces. Despite being weak, they possess the potential to drive spontaneous folding or unfolding of proteins and nucleic acids and the recognition between complimentary molecular surfaces. The power of these forces lies in the cooperativity with which they act, thereby generating a cumulative effect of many bonding interactions occurring together. Many ongoing research aims to translate the potential of these forces to the synthetic world to create desired structures with specific chemical functions. Achieving this offers unlimited opportunities for designing and synthesizing the most complex structures with specific applications. This highlight aims to reflect the critical role these noncovalent forces play in controlling macromolecular structures, which hold immense untapped potential for applications defying conventions, and briefly touches on the concept of homochirality in nature based on chiral and weak noncovalent interactions in synthetic nonpolar Si‐catenated polymers. It sheds some light on the discovery and characterization of Si/F‐C interactions in fluoroalkylated polysilanes in chemosensing of fluoride ions and nitroaromatics with a great sensitivity and selectivity. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 4637–4650, 2008

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“…5,9 However, the addition-type room temperaturevulcanized (RTV) silicone rubber, 10,11 especially which uses platinum (Pt) complex as the catalyst and contains the F atom like trifluoropropyl (TFP; -CH 2 CH 2 CF 3 ) group, has rarely been reported. 12,13 Platinum has been widely used as a catalyst for the cross-linking of silicone elastomers by a hydrosilylation reaction (also known as addition cure) in the silicone industry. In Pt catalysis of the hydrosilylation, there is an induction time before the reaction proceeds efficiently.…”

Section: Introductionmentioning

confidence: 99%

Improvement in oil resistance of room temperature-vulcanized polysiloxane rubber via blending with self-synthetic fluorosilicone

Chen

Zhang

2013

Journal of Elastomers & Plastics

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In this work, different contents of vinyl-terminated fluorosilicone oil (VFS oil) were blended with room temperature-vulcanized (RTV) polydimethylsiloxane (PDMS). Via rheological detection, the addition of VFS oil could increase the viscosities of VFS/ PDMS/silicon dioxide (SiO 2 ) blends, probably due to the interaction between incorporated fluorine atom and silanol on the surfaces of SiO 2 . The additional ''structuring effect'' was reduced by enhancing the shearing rate of the mixed gums containing VFS oil and the obvious shear-thinning property was helpful for enhancing the processability. The curing process and cross-linking degree test of VFS/PDMS/SiO 2 blends suggested that the VFS oil could reduce the curing time and the induction time, but did not play a positive role in the cure depth using a platinum catalyst. Mechanical property tests showed that the VFS oil did not increase the tensile strength and elongation at break, and the hardness slightly decreased with increasing VFS oil content. The oil resistance property test showed that the oil resistance of the polysiloxane rubber was well improved by the incorporation of the VFS oil containing the functional group -CH 2 CH 2 CF 3 .

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Preparation and characterization of a novel organopolysilane. (3,3,3-Trifluoropropyl)methylpolysilane

Cited by 48 publications

References 1 publication

Efficient curing of polymethylsilane by borazine and reaction mechanism study

Efficient curing of polymethylsilane by borazine and reaction mechanism study

Nonclassical forces: Seemingly insignificant but a powerful tool to control macromolecular structures

Improvement in oil resistance of room temperature-vulcanized polysiloxane rubber via blending with self-synthetic fluorosilicone

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