Nanoconfined ring-opening metathesis polymerization of dicyclopentadiene

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Title: Nanoconfined ring-opening metathesis polymerization of dicyclopentadiene
Author: Vaddey, Maitri
Abstract: Ring -opening metathesis polymerization (ROMP ) of endo -dicyclopentadidene (DCPD ) with second generation Grubbs catalyst is carried out under nanoscale constraint . Differential scanning calorimetry is used to study the polymerization reaction both in the bulk and in the nanopores of controlled pore glass as a function of heating rate . In 110 nm -diameter pores , DCPD undergoes incomplete polymerization followed by the reverse Diels -Alder reaction to form cyclopentadiene . Decreasing the heating rate shifts both exothem and endotherm reactions towards lower temperatures but does not avert the side reaction . In the bulk unconfined case , only the reverse Diels -Alder reaction occurs in the absence of catalyst . Under nanoconfinement , the ROMP reaction is slower in nanopores compared to bulk , whereas the reverse Diels -Alder reaction is faster in nanopores compared to the bulk .
URI: http : / /hdl .handle .net /2346 /45160
Date: 2012-05

Citation

Nanoconfined ring-opening metathesis polymerization of dicyclopentadiene. Master's thesis, Texas Tech University. Available electronically from http : / /hdl .handle .net /2346 /45160 .

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