Statistical Ring Opening Metathesis Copolymerization of Norbornene and Cyclopentene by Grubbs' 1st-Generation Catalyst

Επιστημονική δημοσίευση - Άρθρο Περιοδικού uoadl:2928875 7 Αναγνώσεις

Μονάδα:
Τμήμα Χημείας
Τίτλος:
Statistical Ring Opening Metathesis Copolymerization of Norbornene and Cyclopentene by Grubbs' 1st-Generation Catalyst
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
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.
Έτος δημοσίευσης:
2015
Συγγραφείς:
Christiana Nikovia
Andreas-Philippos Maroudas
Panagiotis Goulis
Dionysios Tzimis
Patrina Paraskevopoulou
Marinos Pitsikalis
Περιοδικό:
Molecules
Εκδότης:
MDPI AG
Τόμος:
20
Αριθμός / τεύχος:
9
Σελίδες:
15597--15615
Λέξεις-κλειδιά:
Ring Opening Metathesis Polymerization (ROMP); norbornene; cyclopentene;
copolymerization; thermogravimetric analysis (TGA)
Κύρια θεματική κατηγορία:
Θετικές Επιστήμες
Επίσημο URL (Εκδότης):
DOI:
10.3390/molecules200915597
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