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Description of  PSS-Octavinyl substituted  CAS NO: 69655-76-1

 

Name: PSS-Octavinyl substituted 

CAS NO: 69655-76-1

Purity: 97% min

MF: C16H24O12Si8

MW:633.04

BP:329.4ºC at 760mmHg

Density:1.22g/cm3

MP:>350ºC 

Storage:Inert atmosphere,Room Temperature

Appearance: white powder

Package: 25g, 100g, 500g, bulk package 

Application:Syntheses Material Intermediates

 

Other name:

Poly(Vinyl Silsesquioxane) ;

Octa(vinylsilasesquioxane);

Poss technology advantages:

 

Polyhedral oligomeric silsesquioxane, POS for short, general formula  (RSiO3/2)n, wherein R is the group connected by eight top angle Si atoms.

Poss is an inorganic core composed of Si-O alternately connected silica skeleton, whose shape is like a cage, so it is named cage polysesquioxane.

Its three-dimensional size is between 1-3nm, in which the distance between Si atoms is 0.5nm, and the distance between R groups is 1.5nm.

The application of POSS in polymer mainly depends on R-group, which can be reactive group, such as alkenyl group, epoxy group, amino group, etc. it can graft or polymerize with polymer through reactive R-group, so as to produce chemical bond between polymer, introduce poss group, realize uniform dispersion on molecular layer and improve polymer performance.

 

When the R group is an inert group, such as alkyl, alkylene, aryl, etc., the compatibility between poss nanostructures and polymers can be adjusted.

POSS / polymer nanocomposite is a kind of high-performance organic-inorganic hybrid material developed recently. With poss as the inorganic component, inorganic phase and organic phase are combined by strong chemical bond, so there is no problem of agglomeration of inorganic particles and weak binding force of two-phase interface, so it is easy to composite with polymer matrix through copolymerization, grafting or blending.

Application of PSS-Octavinyl substituted CAS NO: 69655-76-1

POSS / polymer nanocomposites have excellent comprehensive properties, mainly in the following aspects:

(1) The service temperature of the composite can be increased;

(2) It can improve the mechanical properties of composites;

(3) The processability of the composite can be improved;

(4) It can make the composite have significant delayed combustion characteristics;

(5) Poss can be used as a sealing group or crosslinking curing center to obtain modified polymers that meet different needs.

 

The future directions of Octavinyloctasilasesquioxane research could involve its use in the synthesis of highly luminescent PNC-polymer composites with a superhydrophobic micro/nano structured surface.

 

 

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