US EPA

7557627 

Journal Article 

Synthesis and characterization of poly(N-acryloylcarbazole) 

Brar, AS; Singh, PK; , 

2006 

1 

Indian Journal of Chemistry. Section A
ISSN: 0376-4710
EISSN: 0975-0975 

NATL INST SCIENCE COMMUNICATION-NISCAIR 

NEW DELHI 

45 

3 

581-586 

English 

WOS:000236215600001 

N-acryloylcarbazole was prepared in a two-step synthesis starting from carbazole. Poly(N-acryloylcarbazole) was prepared by bulk polymerization using benzoyl peroxide (BPO) as free-radical initiator at 100 degrees C. N-acryloylcarbazole was characterized by One-dimensional NMR (H-1, C-13 {H-1) and Distortionless Enhancement by Polarization Transfer (DEPT)) experiments. Assignments of One-dimensional NMR spectra were further confirmed by Two-dimensional Heteronuclear Single Quantum Coherence (HSQC) experiment and Total Correlation Spectroscopy (TOCSY). Characterization of poly(N-acryloyicarbazole) was done by C-13 {H-1) and DEPT NMR experiments. The signals obtained for poly(N-acryloylcarbazole) were broad due to the restricted rotation of bulky carbazole group and the quadrupolar effect of nitrogen present in carbazole moiety. Assignments of One-dimensional NMR spectra were further confirmed by HSQC experiments. The molecular weight of poly(N-acryloylcarbazole) was determined by Gel Permeation Chromatography (GPC). Its thermal stability was determined by thermogravimetric analysis (TG/DTA) and Glass transition temperature (T-g) was determined by Differential Scanning Calorimetry (DSC).