63148-56-1
DOW CORNING FS CHEMICALLY INERT FLUID
CAS: 63148-56-1
Molecular Formula: (C4H7F3OSi)n
63148-56-1 - Names and Identifiers
63148-56-1 - Physico-chemical Properties
| Molecular Formula | (C4H7F3OSi)n |
| Density | 1,28 g/cm3 |
| Melting Point | -47°C |
| Flash Point | 315°C |
| Water Solubility | Insoluble in water. |
| Storage Condition | Room Temprature |
| Refractive Index | 1.381 |
| MDL | MFCD00241477 |
| Use | Application polytrifluoropropyl methyl Siloxane is a high molecular weight polytrifluoropropyl methyl siloxane (PMTFPS), it can be used to prepare a polytrifluoropropylmethylsiloxane/Silver composite surface-enhanced Raman substrate and a polytrifluoropropylmethylsiloxane-coated titanium dioxide composite. |
63148-56-1 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
63148-56-1 - Synthesis and characterization of α,ω-3-bis (3-aminopropyl)-polytrifluoropropyl methyl siloxane and its modified polyurethane urea and its oxidative stability in vitro
from VIP Journal Professional Edition
Author:
Abstract:
α,& omega;-3-bis (3-aminopropyl)-polytrifluoropropylmethylsiloxane was directly synthesized and characterized by one-step reaction, then the modified Polyether polyurethane urea (FSPUU) with different FPS content was synthesized by using it and polytetrahydrofuran glycol (PTMG) as the mixed soft segment. The surface properties and morphological structure of FSPUU membrane were studied. The experimental results show that the surface of FSPUU membrane is hydrophobic, which is related to the enrichment of F element on the surface. The FSPUU membrane was immersed in CoCl2-20% H2O2 solution for 21 days of accelerated oxidation treatment, and the degradation degree of PTMG soft segment was estimated. Compared with PDMS modified PUU(MSPUU), the oxidation stability of FSPUU is enhanced, which is related to the lower swelling rate and water permeability of FSPUU in water and H2O2 solution. In addition, FSPUU film showed good mechanical properties, and its tensile strength and elongation at break were higher than that of mpuu.
Key words:
DOI:
10.3724/sp.j.1105.2010.00001
cited:
year:
2010
Last Update：2024-01-02 23:10:35
63148-56-1 - Anionic bulk ring-opening polymerization reactive extrusion synthesis of polytrifluoropropyl methylsiloxane
from Baidu Library
Author:
Yajuan Gao , Yang Peng , piping , risk , Zheng An Na
Abstract:
with the same tight intermeshing twin-screw extruder as the reactor, sodium silanolate/ethyl acetate (EA) as the initiating system, the anionic bulk ring-opening polymerization of trifluoropropylmethylcyclotrisiloxane (F3) was carried out, polytrifluoropropyl methyl siloxane (PMTFPS) was prepared. The structure and molecular weight of the polymer were confirmed by infrared spectroscopy (FT-IR), nuclear magnetic resonance (1H-NMR) and gel permeation chromatography (GPC). The composition of by-products was analyzed by ionization time-of-flight mass spectrometry. The results show that the equilibrium point can be reached in advance by increasing the reaction temperature and the amount of EA. The main effect of screw speed on the reaction is to change the polymerization reaction time. Therefore, high molecular weight and high yield of PMTFPS can be obtained by controlling the appropriate reaction conditions so that the reaction is terminated before the arrival time of the equilibrium point. The number average molecular weight of the obtained product was 2.41 × 105, the molecular weight dispersion index was 1.12, and the yield was 90.5%.
Key words:
anionic bulk ring-opening polymerization ethyl acetate polytrifluoropropyl methylsiloxane reactive extrusion
DOI:
CNKI:SUN:GFZC.0.2011-09-005
cited:
year:
2011
Last Update：2023-08-16 22:09:50
63148-56-1 - Titanium dioxide composite material coated with polytrifluoropropyl methyl siloxane and preparation method and application thereof
from Baidu Library
patent type:
invention patent
Application (patent) number:
CN201911303605.7
application date:
20191217
Public/Announcement Number:
CN110934776A
Public/announcement date:
20200331
applicant (patent):
Central South University of Forestry and Technology Guangdong puben nanotechnology Co., Ltd.
inventor:
Yu Shengfei , Zhang Jun , rowusheng , Zhang Kai , Zhang yi ,
National and provincial code:
CN430103
Abstract:
The invention discloses a titanium dioxide composite material coated with polytrifluoropropyl methyl siloxane and a preparation method and application thereof, its surface is coated with polytrifluoropropyl methyl siloxane organic film layer to form core-shell structure. The preparation method includes: preparing fluorosilanol alkali metal prepolymer, adding TiO ultrafine particles, the remaining 1,3,5 trimethyl 1,3,5 Tris (3,3,3 trifluoropropyl) the above titanium dioxide composite material is made of cyclotrisiloxane and accelerator. The titanium dioxide composite material has the advantages of high whiteness, good weather resistance, good dispersibility, strong ultraviolet absorption ability, hydrophobic, oleophobic and the like, and can be widely used for preparing cosmetics, it has high use value and good application prospect. Its preparation method has the advantages of simple process, convenient operation, controllable reaction and the like, and is suitable for large-scale preparation
Last Update：2023-08-16 22:09:50
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CAS: 63148-56-1
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