Second step modification of epoxidised polymers. 5. Systems allowing release of naphthylacetic acid from epoxidised polyisoprene and liquid natural rubber


Citation

Soutif J. C., . and Klinpituksa P., . and Brosse J. C., . Second step modification of epoxidised polymers. 5. Systems allowing release of naphthylacetic acid from epoxidised polyisoprene and liquid natural rubber. pp. 243-252. ISSN 0127-7065

Abstract

A polymeric support containing free or linked naphthylacetic acid (NAA) a stimulator for the production of latex by Hevea can be obtained from epoxidised synthetic 1 4-polyisoprene or liquid natural rubber (LNR). Crosslinking of emulsified epoxidised polymers containing free or bound NAA by diacids or anhydrides catalysed by the tetrabutylammonium salt of the corresponding diacids leads to polymeric particles containing free NAA. Hydrolysis of NAA derivatives of epoxidised 1 4-polyisoprene and epoxidised LNR has been performed in basic media. This particular formulation leads to a high initial rate of liberation.


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Abstract

A polymeric support containing free or linked naphthylacetic acid (NAA) a stimulator for the production of latex by Hevea can be obtained from epoxidised synthetic 1 4-polyisoprene or liquid natural rubber (LNR). Crosslinking of emulsified epoxidised polymers containing free or bound NAA by diacids or anhydrides catalysed by the tetrabutylammonium salt of the corresponding diacids leads to polymeric particles containing free NAA. Hydrolysis of NAA derivatives of epoxidised 1 4-polyisoprene and epoxidised LNR has been performed in basic media. This particular formulation leads to a high initial rate of liberation.

Additional Metadata

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Item Type: Article
AGROVOC Term: Natural rubber
AGROVOC Term: Liquids
AGROVOC Term: Latex
AGROVOC Term: Polymers
AGROVOC Term: Microencapsulation
AGROVOC Term: Hydrolysis
AGROVOC Term: Naphthaleneacetic acid
AGROVOC Term: Epoxides
AGROVOC Term: Cross-linking
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 24 Apr 2025 06:28
URI: http://webagris.upm.edu.my/id/eprint/23440

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