title: Synthesis and molecular characterization of acrylate liquid crystalline resin monomers (ALCRM).
abstract: A novel biocompatible resin monomer 4&mdash;3&mdash;(acryloyloxy)&mdash;2&mdash;hydroxypropoxy) phenyl 4&mdash;(3&mdash;(acryloyloxy)&mdash;2&mdash;hydroxypropoxy) benzoate, as an oral restorative &mdash; acrylate liquid crystalline resin monomer (ALCRM) was synthesized. The intermediate product and the final product were characterized by differential scanning calorimetry (DSC), polarized optical microscope (POM), and nuclear magnetic resonance (NMR). A resin matrix which has a potential application in dental composites was prepared by photopolymerizing ALCRM and triethylene glycol dimethacrylate (TEGDMA) as a primary and diluted monomer with a photosensitizer of camphorquinone (CQ) and 2&mdash;(Dimethylamino)ethyl methacrylate (DMAEMA) mixture. The molar ratio of ALCRM and TEGDMA was 7:3. The properties such as the curing depth, curing time, and the volumetric shrinkage of the resin matrix were investigated and compared with a traditional composite resin matrix Bis&mdash;GMA. After photocuring polymerization, the conversion degree of the resin matrix is 68.06%, higher than Bis&mdash;GMA/TEGDMA; the curing time is 4.08±0.20min, the curing depth is 2.10±0.17mm, and the volumetric shrinkage is 3.62%±0.26%. All the properties exhibit a better performance of the prepared resin matrix than Bis&mdash;GMA.
authors.affiliation: School of Stomatology Sichuan Medical University Department of Prosthodontics, Orofacial Reconstruction and Regeneration Laboratory of Sichuan Medical University Luzhou China.
authors.forename: X P
authors.initials: XP
authors.lastname: He
authors.affiliation: School of Stomatology Sichuan Medical University Department of Prosthodontics, Orofacial Reconstruction and Regeneration Laboratory of Sichuan Medical University Luzhou China.
authors.forename: W
authors.initials: W
authors.lastname: Cai
authors.affiliation: School of Stomatology Sichuan Medical University Department of Prosthodontics, Orofacial Reconstruction and Regeneration Laboratory of Sichuan Medical University Luzhou China.
authors.forename: L
authors.initials: L
authors.lastname: Guo
authors.affiliation: School of Stomatology Sichuan Medical University Department of oral medicine, Orofacial Reconstruction and Regeneration Laboratory of Sichuan Medical University Luzhou China.
authors.forename: L Z
authors.initials: LZ
authors.lastname: Zhou
authors.affiliation: School of Stomatology Sichuan Medical University Department of oral medicine, Orofacial Reconstruction and Regeneration Laboratory of Sichuan Medical University Luzhou China dr_minhai_nie&commat;sohu.com.
authors.forename: M H
authors.initials: MH
authors.lastname: Nie
mesh_terms: D000179:Acrylates / Q000138:chemical synthesis* / Q000737:chemistry; D001565:Benzoates / Q000138:chemical synthesis* / Q000737:chemistry; D002152:Calorimetry, Differential Scanning; D002164:Camphor / Q000031:analogs & derivatives / Q000737:chemistry; D003188:Composite Resins / Q000138:chemical synthesis* / Q000737:chemistry; D058250:Dental Restoration Repair / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy; D008689:Methacrylates / Q000737:chemistry; D008859:Microscopy, Polarization; D011092:Polyethylene Glycols / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry
chemical_list: C000595729:4-(3-(acryloyloxy)-2-hydroxypropoxy)phenyl 4-(3-(acryloyloxy)-2-hydroxypropoxy)benzoate; D000179:Acrylates; D001565:Benzoates; D003188:Composite Resins; D008689:Methacrylates; D011109:Polymethacrylic Acids; C020946:triethylene glycol dimethacrylate; D011092:Polyethylene Glycols; D002164:Camphor; C049840:2-(dimethylamino)ethyl methacrylate; C553149:camphorquinone