Adhesive and application thereof in field of electrochromism
A technology of electrochromic devices and composite adhesives, applied in adhesives, instruments, optics, etc., can solve problems such as electrolyte leakage, poor stability of epoxy resin against moisture and heat, and failure of bonding performance
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[0059] Example 1:
[0060] Preparation of cyanate ester group-containing polyimide-siloxane resin:
[0061] (1) Dissolve 3,3',4,4'-diphenyl sulfide tetracarboxylic anhydride (20mmol) in a mixed solvent of N,N-dimethylacetamide and tetrahydrofuran (volume 150mL, volume ratio 1 / 1), then add the aminophenyl-terminated polydimethylsiloxane (2mmol) with a molecular weight of 1995g / mol, stir at room temperature for 3 hours, and extract the tetrahydrofuran under reduced pressure;
[0062] (2) Add 4,4'-diaminodiphenyl ether (8.5mmol) and 3,5-bis(4-aminophenoxy)phenol (8.5mmol) to the solution obtained in step (1), and stir at room temperature for 5 hours ; Then add aniline (2mmol), stir at room temperature for 5 hours, then add aqueous xylene (30 mL), and react at 180 ºC for 10 hours;
[0063] (3) In an ice water bath, add cyanogen chloride (8.5 mmol) and triethylamine (10 mmol) to the solution obtained in step (2), and react at room temperature for 1 hour;
[0064] (4) The solution obtained...
Example Embodiment
[0068] Example 2
[0069] Preparation of cyanate ester group-containing polyimide-siloxane resin:
[0070] (1) Dissolve 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]hexafluoropropane dianhydride (20 mmol) in a mixture of N,N-dimethylformamide and tetrahydrofuran In the solvent (150mL, the volume ratio is 2 / 1), add aminophenyl-terminated polymethyltrifluoropropylsiloxane (3mmol) with a molecular weight of 2100g / mol, stir at room temperature for 5 hours, and extract the tetrahydrofuran under reduced pressure;
[0071] (2) Add 4,4'-diaminodiphenyl ether (4mmol) and 3,5-bis(4-aminophenoxy)phenol (12mmol) to the solution obtained in step (1), and stir at room temperature for 5 hours; Add aniline (2mmol), stir at room temperature for 5 hours, then add water-carrying agent o-dichlorobenzene (40 mL), and react at 200 ºC for 5 hours;
[0072] (3) Add cyanogen chloride (12 mmol) and triethylamine (15 mmol) to the solution obtained in step (2) under an ice water bath, and react at room temperature fo...
Example Embodiment
[0077] Example 3
[0078] Preparation of cyanate ester group-containing polyimide-siloxane resin:
[0079] (1) Dissolve 3,3',4,4'-benzophenonetetracarboxylic anhydride (20mmol) in a mixed solvent of N-methylpyrrolidone and tetrahydrofuran (150mL, volume ratio 2 / 1), and then add the molecular weight 2100g / mol of aminophenyl-terminated polymethyltrifluoropropylsiloxane (3mmol), after stirring for 5 hours at room temperature, tetrahydrofuran was extracted under reduced pressure;
[0080] (2) Add 3,3',5,5'-tetramethyl-4,4'-diaminodiphenyl sulfide (8mmol) and 3,5-bis(4-amino) to the solution obtained in step (1) Phenoxy)phenol (8mmol), stir at room temperature for 5 hours; then add aniline (2mmol), stir at room temperature for 5 hours, then add water-carrying agent xylene (30 mL), and react at 180ºC for 10 hours;
[0081] (3) Under an ice water bath, add cyanogen chloride (8 mmol) and triethylamine (10 mmol) to the solution obtained in step (2), and react at room temperature for 1 hour;
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