Rubber separator synthesis

Enzymatically active, partially purified (washed) rubber particles can be isolated such that, when provided with an appropriate APP primer, magnesium ion cofactor, and IPP monomer, rubber is produced in vitro [253-255]. Fresh latex can be separated by centrifugation into three phases. The bottom fraction (20% of the latex) contains membrane-bound organelles. The middle fraction is called the C-serum. The top fraction phase contains the rubber particles. Biochemical smdies have established that latex in this fractionated form is unstable. These smdies also suggest that the bottom fraction is required for initiation of polymer synthesis. 

OTHER COMMENTS used as a solvent for nitrocellulose, rubber, synthetic resins, lacquers and synthetic coatings chemical intermediate in the organic synthesis of pharmaceuticals, dyes and inhibitors also used as a dewaxing agent for lubricating oils and in the separation of tantalum and niobium. 

This chapter will review the relationships among synthetic detail, morphology, and resulting mechanical behavior. While effects on the glass-rubber transition and modulus will be emphasized, aspects of toughness and impact resistance will be touched upon and applications discussed. In order to generalize this critique, polymer I is defined as the first synthesized polymer, and polymer II as the second synthesized polymer. Even when the order of synthesis is immaterial, as in mechanical blends, this notation will prove useful. Since the basis of this chapter lies in the two-phased nature of these materials, it is appropriate to examine first the fundamental reasons underlying phase separation. 

In this chapter we consider the properties of synthetic polymers. First, the main techniques of polymer synthesis are outlined (Section 2.2). Then the conformation of polymer molecules is discussed in Section 2.3. We move on to a summary of the main methods for characterization of polymeric materials in Section 2.4. Then the distinct features of the main classes of polymer are considered, i.e. solutions (Section 2.5), melts (and glasses) (Section 2.6) and crystals (Section 2.7). Then the important properties of plastics (Section 2.8), rubber (Section 2.9) and polymer fibres (Section 2.10) are related to microscopic structure and to rheology. Polymer blends and block copolymers form varied structures due to phase separation, and this is compared and contrasted for the two types of system in Section 2.11. Section 2.12 is concerned with dendrimers and hyperbranched polymers. Section 2.13 and 2.14 deal with polyelectrolytes and (opto)electronic polymers respectively. 

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