Polypropylene is a widely used thermoplastic polymer produced from addition polymerization
of monomer propylene.
is the formation of polymers from monomers containing a carbon-carbon double bond through an exothermic addition reaction.
Besides addition polymerization
of vinylic monomers, Zhou and coworkers, after proper surface modification, performed surface-initiated ring-opening polymerizations of norbornene, lactide, and carprolactone, respectively [34-36].
Two different approaches to free radical addition polymerization
were studied: in solution and in emulsion.
Synthesis mechanisms including polycondensation, addition polymerization
via ionic and free radical intermediations, and copolymerization are discussed.
In addition Polymerization
, the monomer simply adds on to one another, while in condensation Polymerization a small molecule, like water is split out during the reaction.
He starts with introductory concepts such as basic definitions and the polymerization process, molecular architecture, and polymer nomenclature, continuing with chain dimensions, structures, transitional phenomena, polymers in solution, polymer molecular weights, condensation (step-growth) polymerization, free radical polymerization, chain co-polymerization, ionic chain polymerization, coordination addition polymerization
, and ring-opening polymerization.
Polystyrene is a thermoplastic formed by addition polymerization
of the monomer vinylbenzene, a.
These may be illustrated with the examples of ethylene for the addition polymerization
and that of a diamine-diacid system for the condensation polymerization.
The resins' thermal stability in air at 400 F is said to be much better than BMIs, and they cure by addition polymerization
without liberating volatiles.
For a polymer science laboratory course, the ring-opening polymerization of PLA complemented other polymerization methods, Including addition polymerization
, solution polycondensation of linear polyesters, Interfacial polymerization of linear polyesters ("nylon rope trick"), enzymatic polymerization, and emulsion polymerization.