BIODEGRADABLE SUPER ABSORBENT POLYMER

1.  Super absorbent polymers, are very
high molecular mass cross linked poly
electrolytes that can be absorb or imbibe
more than 1000 times their mass of
water or aqueous solutions.
 In order to absorb this large quantity
of aqueous fluid, the polymer must be
slightly cross linked so that the polymer
chain can adapt widely spaced
configuration.
Derived from bio-based renewable
resources.
Environmentally sustainable.
Biocompatible.
Physical characteristics similar to
conventional SAPs.
It is hypoallergenic, non-toxic and safe.
Biodegradable
 Agricultural
application.
Increase yield, fertilizer
efficiency.
 Promotes growth.
 Reduce erosion.
SAP based on chitin and succinic
anhydride.
Cassava-starch-g-acryl amide.
SAP derived from cotton cellulose and
succinic anhydride.
Flax shive cellulose-based SAP.
Personal hygienic products
Gel wound dressing
Cooling wear
SUPER ABSORBENT POLYMER
(SAP)
WHY THEY SWELL ? NOVEL BIODEGRADABLE
SAPs
REFERENCES
APPLICATIONS
IMPORTANCE
BIODEGRADABLE SUPER ABSORBENT POLYMER
Amina P . E & Riya Thankachan , MSc.BIO POLYMER SCIENCE
CENTRE FOR BIO POLYMER SCIENCE AND TECHNOLOGY, KOCHI
After 2 minutes
The polymer backbone in SAP is
hydrophilic i.e. ‘water loving’ because it
contains water loving carboxylic acid
groups (–COOH). When water is added to
SAP there is a polymer/solvent interaction;
hydration and the formation of hydrogen
bonds are two of these interactions.
 Water blocking tape
for cables.
Fire extinguishing gel.
Sand bags for flood
control.
GLOBAL SUPER
ABSORBENT POLYMER
MARKET
CONCLUSION
Biodegradation mechanism
SAPs can absorb water up to several
1000 times of its own weight and keep
this water under pressure.
Because of these unique properties,
SAPs have many novel potential
applications in various areas.
The products biologically degraded,
which shows their good
biodegradability.
 D.A. Allen in “modern super
absorbent polymer technology” F.L.
Buchholz and A.T. Graham Eds.,John
wiley & sons, New York (1998)
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