Both reactions require energy.
Usually, decomposition reactions require energy input.
In other words, the reactions require more energy than their starting molecules can provide.
Chain-growth polymerization reactions require the presence of an initiator, a compound that reacts with the monomer to form another reactive compound, which begins the linking process.
Glowing puppies have already been created, and there is talk of glowing trees and even glowing food.The simplest light-producing reactions require an organic molecule, known as a luciferin, to be oxidised by oxygen, a process that is helped along by an enzyme known as luciferase.
They were right: they had produced glowing barnacle muscles.This work, and other studies that made use of proteins collected from fireflies, showed that because bioluminescent reactions require certain cofactors to be present in order to function, they could be used to detect specific chemicals in an environment.
An example is glyptal, a polyester formed from a reaction of phthalic anhydride with the trialcohol glycerol: Chain-growth polymerization reactions require the presence of an initiator, a compound that reacts with the monomer to form another reactive compound, which begins the linking process.
The reactions require no protein or external energy source.
Because some reactions require days to be completed, catalyst lifetime can be a limiting parameter.
Enzyme reactions require milder conditions, less solvent, and give cleaner products attributes of green chemistry.
However, few catalytic reactions require that the pores be regularly ordered.
