PMID- 20594412
OWN - NLM
STAT- MEDLINE
DCOM- 20160607
LR  - 20191210
IS  - 1568-5624 (Electronic)
IS  - 0920-5063 (Linking)
VI  - 22
IP  - 10
DP  - 2011
TI  - Evaluation of new tri-methacrylates as a reactive diluent in root canal sealant.
PG  - 1379-91
LID - 10.1163/092050610X508428 [doi]
AB  - In this work, a novel tri-methacrylate oligomer, GPTEMA, with three long-branched 
      chain structures was synthesized through the reaction of glycerol propoxylate 
      triglycidyl ether (GPTE) and methacrylic acid. The structure of GPTEMA was 
      confirmed by FT-IR, (1)H-NMR, gel-permeation chromatography (GPC) and element 
      analysis. The GPTEMA was used to partially or completely replace TEGDMA as 
      reactive diluent and applied in a root canal sealant system containing Bis-GMA. 
      The effects of GPTEMA on the polymerization behavior of Bis-GMA/TEGDMA/GPTEMA 
      co-polymer and properties of its polymerizing product were investigated. 
      Polymerization shrinkage, double bond conversion, glass transition temperature, 
      flexural strength, flexural modulus, water sorption and diffusion coefficient of 
      the Bis-GMA/TEGDMA/GPTEMA co-polymer were measured. The results illustrated that 
      the Bis-GMA/TEGDMA/GPTEMA co-polymer attained lower polymerization shrinkage and 
      higher double bond conversion. However, its T g, flexural strength and flexural 
      modulus decreased with increasing content of GPTEMA, water sorption and diffusion 
      coefficient increased with increasing content of GPTEMA.
FAU - Liu, Fang
AU  - Liu F
AD  - a College of Materials Science and Engineering, South China University of 
      Technology, Guangzhou 510641, P.R. China. mcfliu@126.com.
FAU - Liao, Lingling
AU  - Liao L
FAU - He, Jingwei
AU  - He J
FAU - Luo, Yuanfang
AU  - Luo Y
FAU - Jia, Demin
AU  - Jia D
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - J Biomater Sci Polym Ed
JT  - Journal of biomaterials science. Polymer edition
JID - 9007393
RN  - 0 (Methacrylates)
RN  - 0 (Polymethacrylic Acids)
RN  - 0 (Root Canal Filling Materials)
RN  - 059QF0KO0R (Water)
RN  - 14I47YJ5EY (triethylene glycol dimethacrylate)
RN  - 1CS02G8656 (methacrylic acid)
RN  - 3WJQ0SDW1A (Polyethylene Glycols)
RN  - 454I75YXY0 (Bisphenol A-Glycidyl Methacrylate)
SB  - IM
MH  - Bisphenol A-Glycidyl Methacrylate/chemistry
MH  - Chromatography, Gel
MH  - Diffusion
MH  - Glass/chemistry
MH  - Materials Testing
MH  - Methacrylates/chemical synthesis/chemistry
MH  - Molecular Structure
MH  - Polyethylene Glycols/chemistry
MH  - Polymerization
MH  - Polymethacrylic Acids/chemistry
MH  - Proton Magnetic Resonance Spectroscopy
MH  - *Root Canal Filling Materials/chemical synthesis/chemistry
MH  - Spectroscopy, Fourier Transform Infrared
MH  - Transition Temperature
MH  - Viscosity
MH  - Water/chemistry
OTO - NOTNLM
OT  - BRANCHED OLIGOMER
OT  - EVALUATION
OT  - REACTIVE DILUENT
OT  - ROOT CANAL SEALANT
OT  - SYNTHESIS
OT  - TRI-METHACRYLATES
EDAT- 2010/07/03 06:00
MHDA- 2016/06/09 06:00
CRDT- 2010/07/03 06:00
PHST- 2010/07/03 06:00 [entrez]
PHST- 2010/07/03 06:00 [pubmed]
PHST- 2016/06/09 06:00 [medline]
AID - jbs3172 [pii]
AID - 10.1163/092050610X508428 [doi]
PST - ppublish
SO  - J Biomater Sci Polym Ed. 2011;22(10):1379-91. doi: 10.1163/092050610X508428.