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Questions and Answers
What are some examples of chemically modified natural rubbers (NRs)?
Some examples of chemically modified natural rubbers (NRs) include cyclized natural rubber, deproteinized natural rubber (DPNR), hydrogenated natural rubber (HNR), chlorinated natural rubber (CNR), epoxidized natural rubber (ENR), and graft copolymerization on NR.
What are the different types of chemical modification reviewed in the chapter?
The different types of chemical modification reviewed in the chapter include chemical modification without introducing new atom, modification by introducing a chemical group, and modification by grafting on NR.
What is the purpose of chemical modification of natural rubber (NR)?
The purpose of chemical modification of natural rubber (NR) is to alter its properties and expand its potential applications by introducing new chemical groups, enhancing specific properties, or creating new derivatives.
How are the NR derivatives reviewed in the chapter?
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Where can additional information about the topic be found?
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Study Notes
Chemically Modified Natural Rubbers (NRs)
- Examples of chemically modified NRs include epoxidized natural rubber (ENR), graft copolymers, and hydrogenated natural rubber (HNR)
Types of Chemical Modification
- Epoxidation: introduction of epoxy groups into the NR backbone to improve oil resistance and thermal stability
- Grafting: attachment of synthetic polymers to the NR backbone to enhance mechanical properties and compatibility
- Hydrogenation: saturation of double bonds in the NR backbone to improve thermal stability and resistance to oxidation
Purpose of Chemical Modification
- To improve the physical and chemical properties of NR, such as oil resistance, thermal stability, and mechanical strength, to expand its application range
Review of NR Derivatives
- The chapter reviews various NR derivatives, including their synthesis, properties, and applications
Additional Resources
- Further information on chemically modified NRs can be found in scientific literature, academic journals, and industry reports
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Description
Test your knowledge about natural rubber and its derivatives with this quiz. Learn about the various types of chemical modification of natural rubber and explore the properties of NR derivatives.
