𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis and Photopolymerizations of New Crosslinkers for Dental Applications

✍ Scribed by Baris Yagci; Burcu Ayfer; Aylin Z. Albayrak; Duygu Avci

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
365 KB
Volume
291
Category
Article
ISSN
1438-7492

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Summary: Five new crosslinkers for use in dental composites were synthesized. Four are based on TBHMA: 1 via reaction of TBBr and Bisphenol A; 2 by hydrolysis of t‐butyl groups of the first monomer to give a diacid derivative; 3 by conversion of the first monomer to an amide derivative using benzyl amine; 4 by conversion of the first monomer to amide derivative using APTES. The AHM‐based monomer 5 was synthesized from the Michael addition of APTES to AHM. The photopolymerization behaviors of the synthesized monomers with Bis‐GMA, TEGDMA and HEMA were investigated using photodifferential scanning calorimetry at 40 °C using DMPA as photoinitiator. The polymerization rates and degrees of conversion for mixtures of any of the monomers 1–4 with Bis‐GMA:TEGDMA were found to be similar to Bis‐GMA:TEGDMA, higher than Bis‐GMA:HEMA, and also higher than mixtures with Bis‐GMA:HEMA. The incorporation of TBHMA‐based monomers into the conventional resin mixture (Bis‐GMA and TEGDMA) reduced the polymerization shrinkages. Monomer 5 and its mixtures polymerized much faster and to higher degrees of conversion than the other investigated systems, however, this system exhibited the largest volume shrinkage.

Structures of some of the new crosslinkers synthesized.

magnified imageStructures of some of the new crosslinkers synthesized.

📜 SIMILAR VOLUMES

Synthesis and photopolymerization of mul
Synthesis and photopolymerization of multifunctional methacrylates derived from Bis-GMA for dental applications
✍ Kwang-Duk Ahn; Chan-Moon Chung; Young-Ha Kim 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 136 KB 👁 1 views

Two multimethacrylates having three methacrylate groups (BPA-3M) and four methacrylate groups (BPA-4M) have been prepared by reacting hydroxyl groups of 2,2-bis[4-(2Ј-hydroxy-3Ј-methacryloyloxypropoxy)phenyl]propane (Bis-GMA) with methacryloyl chloride. BPA-3M and BPA-4M have much lower viscosities

Synthesis and photopolymerization of tri
Synthesis and photopolymerization of trifunctional methacrylates and their application as dental monomers
✍ Chung, Chan-Moon ;Kim, Min-Sung ;Kim, Joong-Gon ;Jang, Doo-Ok 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 94 KB

## Abstract 1,1,1‐Tris[4‐(2′‐hydroxy‐3′‐methacryloyloxypropoxy)phenyl]ethane (THMPE) and tris[4‐(2′‐hydroxy‐3′‐methacryloyloxypropoxy)phenyl]methane (THMPM) were synthesized and evaluated as base monomers in a dental composite system. The photopolymerization reactivity of the trifunctional methacry

Synthesis and photopolymerization of pho
Synthesis and photopolymerization of phosphonic acid monomers for applications in compomer materials
✍ Yohann Catel; Loïc Le Pluart; Pierre-Jean Madec; Thi-Nhàn Pham 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 843 KB

## Abstract Novel methacrylate monomers bearing phosphonic acid groups **1** and **2** as well as new sulfur methacrylates **9** and **10** have been prepared in good yields from thiophenol. They have been fully characterized by ^1^H‐NMR, ^13^C‐NMR, ^31^P‐NMR, and HRMS. Their copolymerization with