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Order-of-magnitude polymerization-shrinkage suppression of volume gratings recorded in nanoparticle-polymer

Eiji Hata1, Yasuo Tomita

  • 1Department of Electronics Engineering, University of Electro-Communications,1-5-1 Chofu-gaoka, Chofu, Tokyo 182-8585, Japan.

Optics Letters
|February 4, 2010
PubMed

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Molecular Weight of Step-Growth Polymers01:08

Molecular Weight of Step-Growth Polymers

Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...