TY - JOUR
TI - Statistical Ring Opening Metathesis Copolymerization of Norbornene and Cyclopentene by Grubbs'  1st-Generation Catalyst
AU - Christiana Nikovia
AU - Andreas-Philippos Maroudas
AU - Panagiotis Goulis
AU - Dionysios Tzimis
AU - Patrina Paraskevopoulou
AU - Marinos Pitsikalis
JO - Molecules
PY - 2015
VL - 20
TODO - 9
SP - 15597--15615
PB - MDPI AG
SN - 1420-3049
TODO - 10.3390/molecules200915597
TODO - Ring Opening Metathesis Polymerization (ROMP); norbornene; cyclopentene;
copolymerization; thermogravimetric analysis (TGA)
TODO - Statistical copolymers of norbornene (NBE) with cyclopentene (CP) were
prepared by ring-opening metathesis polymerization, employing the
1st-generation Grubbs’ catalyst, in the presence or absence of
triphenylphosphine, PPh3. The reactivity ratios were estimated using the
Finemann-Ross, inverted Finemann-Ross, and Kelen-Tudos graphical
methods, along with the computer program COPOINT, which evaluates the
parameters of binary copolymerizations from comonomer/copolymer
composition data by integrating a given copolymerization equation in its
differential form. Structural parameters of the copolymers were obtained
by calculating the dyad sequence fractions and the mean sequence length,
which were derived using the monomer reactivity ratios. The kinetics of
thermal decomposition of the copolymers along with the respective
homopolymers was studied by thermogravimetric analysis within the
framework of the Ozawa-Flynn-Wall and Kissinger methodologies. Finally,
the effect of triphenylphosphine on the kinetics of copolymerization,
the reactivity ratios, and the kinetics of thermal decomposition were
examined.
ER -