JP2015048479A5

JP2015048479A5 -

Info

Publication number: JP2015048479A5
Application number: JP2014166429A
Authority: JP
Filing date: 2014-08-19
Publication date: 2017-09-28
Anticipated expiration: 2034-08-19

Claims

Crosslinked fluoroelastomer; see contains the and the cross-linked perfluorinated polyether grafted to the fluoroelastomer, the fluoroelastomer, are crosslinked with an amino-functionalized silane, wherein the amino-functionalized silanes, amino An oleophobic grafted polymer comprising an alkylsilane-modified polysiloxane .

The oleophobic grafted polymer of claim 1 , wherein the amino-functionalized silane provides a graft attachment point.

The oleophobic grafted polymer of claim 1 having the structure of formula I:
Where FE is a fluoroelastomer;
PFPE is a perfluorinated polyether;
L is a linker;
m and o are each independently an integer from 3 to 8;
n is an integer from 1 to 10;
Each occurrence of R ¹ and R ² is independently substituted or unsubstituted C ₁ -C ₆ alkyl;
R ³ and R ⁴ are independently optionally fluorinated C ₁ -C ₆ alkyl, or optionally fluorinated C ₁ -C ₆ alkoxy.

The linker L is a C-terminated functional group that can be covalently linked to the terminal hydroxyl functional group of the perfluorinated polyether. _１1 -C _６6 4. The oleophobic grafted polymer of claim 3, comprising alkyl.

The oleophobic grafting according to claim 3, wherein the fluoroelastomer (FE) has monomer units selected from the group consisting of vinylidene fluoride, tetrafluoroethylene, hexafluoropropylene, perfluoromethyl vinyl ether, and combinations thereof. polymer.

The oleophobic grafted polymer of claim 3 , wherein the fluoroelastomer (FE) has a fluorine content of at least about 65%.

4. The oleophobic grafted polymer of claim 3 , wherein the fluoroelastomer (FE) has a molecular weight in the range of about 50,000 to about 70,000 daltons as measured by gel permeation chromatography.

4. The sparse polymer of claim 3, wherein the perfluorinated polyether (PFPE) is an alkoxysilane terminated perfluorinated polyether having an average molecular weight in the range of about 1,500 daltons to about 2,500 daltons. Oily grafted polymer.

Cross-linking the fluoroelastomer with an amino-functionalized silane; and
Bae Rufu' fluorinated saw including a step of grafting polyethers to the crosslinked fluoroelastomer, wherein the amino-functionalized silane, a process for producing including aminoalkyl silane-modified polysiloxanes, oleophobic grafted polymer.

The process of claim 9, wherein the oleophobic grafted polymer has a structure of Formula I:
Where FE is a fluoroelastomer;
PFPE is a perfluorinated polyether;
L is a linker;
m and o are each independently an integer from 3 to 8;
n is an integer from 1 to 10;
R ^１1 And R ^２2 Are each independently substituted or unsubstituted C _１1 -C _６6 Alkyl,
R ^３3 And R ^４4 Are independently optionally fluorinated C _１1 -C _６6 Alkyl, or optionally fluorinated C _１1 -C _６6 Alkoxy.

It said crosslinking step is carried out in the presence of peptidase Rufu' fluorinated polyether A process according to claim 9.

The process of claim 11, wherein the ratio of the amino-functionalized silane to the perfluorinated polyether ranges from about 0.5: 1 to about 3: 1.

The process of claim 11, wherein the amount of the amino-functionalized silane relative to the fluoroelastomer ranges from about 2 pph to about 10 pph.

The process of claim 9, wherein the fluoroelastomer (FE) has monomer units selected from the group consisting of vinylidene fluoride, tetrafluoroethylene, hexafluoropropylene, belfluoromethyl vinyl ether, and combinations thereof.

The process of claim 9, wherein the fluoroelastomer (FE) has a fluorine content of at least about 65%.

The process of claim 9, wherein the fluoroelastomer (FE) has a molecular weight in the range of about 50,000 to about 70,000 daltons as measured by gel permeation chromatography.

10. The process of claim 9, wherein the perfluorinated polyether (PFPE) is an alkoxysilane terminated perfluorinated polyether having an average molecular weight in the range of about 1,500 daltons to about 2,500 daltons. .

Crosslinked fluoroelastomer of structure A:
Where n is an integer from 1 to 10;
Each of R ₁ and R ₂ is independently an optionally fluorinated C ₁ -C ₆ alkyl; and a perfluorinated polyether grafted to the crosslinked fluoroelastomer :
An oleophobic low adhesion grafted polymer comprising:
An oleophobic grafted polymer in which the OCH ₃ group of the polysiloxane crosslinker provides a reactive site for grafting perfluorinated polyethers.