𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Near-monodisperse α-hydroxy and α,ω-dihydroxy amine-based polymers: Synthesis and characterization

✍ Scribed by Costas N. Costa; Costas S. Patrickios

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
233 KB
Volume
37
Category
Article
ISSN
0887-624X

No coin nor oath required. For personal study only.

✦ Synopsis

␣-Hydroxy and ␣,-dihydroxy polymers of 2-(dimethylamino)ethyl methacrylate (DMAEMA) of various molecular weights were synthesized by group transfer polymerization (GTP) in tetrahydrofuran (THF), using 1-methoxy-1-(trimethylsiloxy)-2-methyl propene (MTS) as the initiator and tetrabutylammonium bibenzoate (TBABB) as the catalyst. The hydroxyl groups were introduced by adding one 2-(trimethylsiloxy) ethyl methacrylate (TMSEMA) unit at one or at both ends of the polymer chain. The ends were converted to 2-hydroxyethyl methacrylate (HEMA) units after the polymerization by acid-catalyzed hydrolysis. Gel permeation chromatography (GPC) in THF and proton nuclear magnetic resonance ( 1 H-NMR) spectroscopy in CDCl 3 were used to determine the molecular weight and composition of the polymers. These mono-and difunctional methacrylate polymers can be covalently linked at the hydroxy termini to form star polymers and model networks, respectively.

📜 SIMILAR VOLUMES

Amino acid-based bioanalogous polymers.
Amino acid-based bioanalogous polymers. Synthesis, and study of regular poly(ester amide)s based on bis(α-amino acid) α,ω-alkylene diesters, and aliphatic dicarboxylic acids
✍ R. Katsarava; V. Beridze; N. Arabuli; D. Kharadze; C. C. Chu; C. Y. Won 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 315 KB 👁 2 views

The purpose of this research was to synthesize new regular poly(ester amide)s (PEAs) consisting of nontoxic building blocks like hydrophobic ␣-amino acids, ␣,-diols, and aliphatic dicarboxylic acids, and to examine the effects of the structure of these building block components on some physico-chemi