21. The resulting organic monomers are then returned to the cytosol for reuse. 22. They literally unzip or depolymerize back to the constituent monomer . 23. Addition of ethylene monomers to the secondary or tertiary sites creates branching. 24. Ideal chain models assume that there are no interactions between chain monomers . 25. Interactions between chain monomers can be modelled as excluded volume. 26. The formed polymer is withdrawn and any unreacted monomer is flashed off. 27. Catechin monomers , dimers, and trimers ( oligomers ) are colorless. 28. Some polymerizations are stopped before all the monomer has reacted. 29. Kevlar, the more reactive acyl chloride is used as a monomer . 30. These studies have shown the precise contact points between monomers .