how can I get adhesives from poly vinyl alcohol or poly vinyl acetate?

Answer 1

Adhesives from PVA:
Unlike most vinyl polymers, PVA is not prepared by polymerization of the corresponding monomer. The monomer, vinyl alcohol, almost exclusively exists as the tautomeric form, acetaldehyde. PVA instead is prepared by partial or complete hydrolysis of polyvinyl acetate to remove acetate groups.
Adhesives :
1.An environmentally friendly wood adhesive was developed by crosslinking cornstarch and poly(vinyl alcohol) (PVOH) with hexamethoxy-methylmelamine (Cymel 323). Citric acid was used as a catalyst and latex (UCar 443) was added to improve moisture resistance. The adhesive was evaluated for its utility in plywood manufacture. It exhibited excellent mechanical properties comparable to many of the commercially available urea-formaldehyde plywood adhesives used for interior applications. The viscosity of the adhesive at 27 % (w/v) was 7000 mPas, allowing easy application to wood surfaces by brush. The minimum concentration of crosslinking agent needed to achieve good mechanical properties in plywood was 15 % (w/w proportion of total solids). Optimum curing temperature and curing time were 175 °C and 15 min, respectively. Addition of latex to the adhesive formulation improved both moisture resistance and physical properties of plywood test samples. Samples prepared with an optimal adhesive formulation, when completely immersed in water for 2 h or exposed at 93 % or 50 % relative humidity (RH) for 30 days, exhibited > 90 % failure in the veneer as opposed to < 10 % failure in the adhesive joints.
2.Methods for making creping adhesives and using them in the creping of cellulosic fiber webs. The creping adhesives are a combination of polyamine-epihalohydrin and poly(vinyl alcohol). The method comprises the preparation and application of the creping adhesives to attain strong adhesion of fiber webs onto a drying surface, and the creping of the fiber webs to obtain a soft, bulky tissue paper web.
Poly vinyl acetate:
Poly(vinyl acetate) emulsion adhesives containing an alkoxysilane Document Type and Number:United States Patent 4818779
The present invention relates to water-borne emulsion adhesives based on polymers or copolymers of vinyl acetate and having uniformly dispersed therein an adhesion promoter consisting essentially of an alkoxysilane and up to about 80% by weight of a plasticizer for the poly(vinyl acetate). The alkoxysilane useful herein may be selected from ##STR1## in which R is independently selected from alkyl or alkoxyalkyl radicals having 1-4 carbon atoms. The modified adhesives have improved bond strength to wood, particularly after exposure to moisture
B..Instructions for Latex Preparation: LATEX A
Equipment: Balance
Beakers (50 mL)
Measuring cylinders (50 mL, 10 mL)
Glass funnel
Stirring rod/spatula
Polymerization bottle (100 mL)
Thermostatted agitator
Materials: Vinyl acetate*_
Surfactant solution (AMA*, AOT*)
Sodium hydrogencarbonate
Potassium persulfate*
Deionized/Distilled Water
* IRRITANTS: avoid contact with skin and eyes
__TOXIC: avoid exposure . use in fumehood with gloves
Safety goggles must be worn at all times in the laboratory
Procedure: 1. Into a 50 mL beaker weigh out
0.12 g Sodium hydrogen carbonate (Buffer)
Into another 50 mL beaker weigh out
0.12 g Potassium persulfate (Initiator)
Avoid cross-contamination by cleaning the spatula between
weighings.
Remove from balance and add distilled water (5 mL) to each beaker,
stir and leave aside.
2. Into the polymerization bottle, using the 50 mL measuring cylinder
and the funnel to avoid spillage add;
Surfactant solution (20 mL)
Water (40 mL)
3. Into the polymerization bottle add 2 aliquots of vinyl acetate (2 ×
14.5 mL = 29 mL). Tighten the cap and shake for 20 seconds.
4. Pour the initiator and buffer solution (made previously in the 50 mL
beaker) into the polymerization bottle, firmly tighten the cap and
label the bottle with a marker including your name, date, and latex
preparation.
See a demonstrator to place your bottle in the thermostatted agitator
for 15 hours at 60o C.
An introduction to the scientific process: Preparation of poly(vinyl acetate) glue
S.W. Prescott, J. McDonald, C.M. Fellows, R.G. Gilbert 8
Instructions for Latex Preparation: LATEX B
2.5% Polyvinyl Alcohol
Equipment: Balance
Beakers (50 mL)
Measuring cylinders (50 mL, 10 mL)
Glass funnel
Stirring rod/spatula
Polymerization bottle (100 mL)
Thermostatted agitator
Materials: Vinyl acetate*_
_ _ Polyvinyl alcohol 88% hydrolyzed*
Surfactant solution (AMA*, AOT*)
Sodium hydrogencarbonate
Potassium persulfate*
Deionized/Distilled Water
* IRRITANTS: avoid contact with skin and eyes
__TOXIC: avoid exposure . use in fumehood with gloves
Safety goggles must be worn at all times in the laboratory
Procedure: 1. Into a 50 mL beaker weigh out
0.12 g Sodium hydrogen carbonate (Buffer)
Into another 50 mL beaker weigh out
0.12 g Potassium persulfate (Initiator)
Avoid cross-contamination by cleaning the spatula between
weighings.
Remove from balance and add distilled water (5 mL) to each beaker,
stir and leave aside.
2. Into the polymerization bottle, using the 50 mL measuring cylinder
and the funnel to avoid spillage add;
Surfactant solution (20 mL)
Polyvinyl alcohol solution for Latex B (37 ml)
Rinse the measuring cylinder with distilled water between additions.
3. Into the polymerization bottle add 2 aliquots of vinyl acetate (2 ×
14.5 mL = 29 mL). Tighten the cap and shake for 20 seconds.
4. Pour the initiator and buffer solution (made previously in the 50 mL
beaker) into the polymerization bottle, firmly

Answer 2

Preparation Of Polyvinyl Acetate

Answer 3

If you want to make them, try a mix of PVOH and PVOAc, as they're abbreviated, with water.

If you want to buy them, try any Borden Elmer's glue or any copycat white glue in a supermarket.