Raman spectroscopy was used to monitor the curing process of a benzoxazine monomer. The reaction follows an autocatalytic mechanism. The autocatalytic model described in Kamal equation was employed. The activation energy and the pre-exponential factor were determined as: Ea = 60.52 kJ mol−1 and A = 6.09 × 105 min−1. The overall reaction order was found to be 1.731 (n = 1.078; m = 0.653). The kinetic model characterized by these values is in good agreement with the experimental values.
HollyFWCopeAC.Condensation products of aldehydes and ketones with o-aminobenzyl alcohol and o-hydroxybenzylamine. J Am Chem Soc1944; 66: 1875–1879.
2.
NingXIshidaH. Phenolic materials via ring-opening polymerization: synthesis and characterization of bisphenol-A based benzoxazines and their polymers. Polym Sci Ser A: Polym Chem1994; 32: 1121–1129.
3.
GhoshNNKiskanBYagciY. Polybenzoxazines: new high performance thermosetting resins: synthesis and properties. Prog Polym Sci2007; 32: 1344–1391.
4.
ChutayothinPIshidaH. Cationic ring-opening polymerization of 1,3-benzoxazines: mechanistic study using model compounds. Macromolecules2010; 43: 4562–4572.
5.
LiuCShenDSebastianRMMarquetJSchonfeldR. Mechanistic studies on ring-opening polymerization of benzoxazines: a mechanistically based catalyst design. Macromolecules2011; 44: 4616–4622.
6.
IshidaHRodriguezY. Curing kinetics of a new benzoxazine-based phenolic resin by differential scanning calorimetry. Polymer1995; 36: 3151–3158.
7.
YeiDRFuHKChenWYChangFC. Synthesis of a novel benzoxazine monomer-intercalated montmorillonite and the curing kinetics of polybenzoxazine/clay hybrid nanocomposites. J Polym Sci B: Polym Phys2006; 44: 347–358.
8.
IshidaHRodriguezY. Catalyzing the curing reaction of a new benzoxazine-based phenolic resin. J Appl Polym Sci1995; 58: 1751–1760.
9.
JupsilpCDamrongsakkulSTakeichiTRimdusitS. Curing kinetics of arylamine-based polyfunctional benzoxazine resin by dynamic differential scanning calorimetry. Thermochim Acta2006; 447: 131–140.
10.
AndronescuCGâreaSADeleanuCIovuH. Characterization and curing kinetics of new benzoxazine monomer based on aromatic diamines. Thermochim Acta2012; 530: 42–51.
11.
SuYCYeiDRChangFC. The kinetics of B-a and P-a type copolybenzoxazine via the ring opening process. J Appl Polym Sci2005; 95: 730–737.
12.
AllenDJIshidaH. Polymerization of linear aliphatic diamine-based benzoxazine resins under inert and oxidative environments. Polymer2007; 48: 6763–6772.
13.
GâreaSAIovuHNicolescuADeleanuC. A new strategy for polybenzoxazine-montmorillonite nanocomposites synthesis. Polym Test2007; 26: 162–171.
14.
ParnellSMinKCakmakM. Kinetics studies of polyurethane polymerization with Raman spectroscopy. Polymer2003; 44: 5137–5144.
15.
SulcaNMLunguAGareaSAIovuH. Monitoring the synthesis of new polymer nanocomposites based on different polyhedral oligomeric silsesquioxanes using Raman spectroscopy. J Raman Spectrosc2009; 40: 1634–1640.
16.
MeradLCochezMMargueronSJauchemFFerriolMBenyoucefB. In-situ monitoring of the curing of epoxy resins by Raman spectroscopy. Polym Test2009; 28: 42–45.
17.
DunkersJP.Vibrational, crystallographic, and mechanistic studies of benzoxazine monomers and their resulting polybenzoxazines as novel phenolic resins. Case Western Reserve University, January 1994.
18.
AllenDJIshidaH. Physical and mechanical properties of flexible polybenzoxazine resins: effect of aliphatic diamine chain length. J Appl Polym Sci2006; 101: 2798–2809.
19.
HayatyMBeheshtyMHEsfandehM. Isothermal differential scanning calorimetry study of a glass/epoxy prepreg. Polym Adv Technol2011; 22: 1001–1006.
20.
NamJDSeferisJC. Application of the kinetic composite methodology to autocatalytic-type thermoset prepreg cures. J Appl Polym Sci1993; 50: 1555–1564.
21.
SallaJMMoranchoJMRamisXCadenatoA. Isothermal degradation and thermooxidative degradation of an epoxy powder coating. J Therm Anal Calorim2005; 80: 163–169.
22.
KamalMRSourousS. Kinetics and thermal characterization of thermoset cure. Polym Eng Sci1973; 13: 59–64.