NDLI: 2,4-Dinitrobenzenesulfonic acid in an efficient Brønsted acid-catalyzed controlled/living ring-opening polymerization of ε-caprolactone

Content Provider	Royal Society of Chemistry (RSC)
Author	Wang, Huiying Wu, Wenzhuo Zhao, Chengxu Chen, Cheng Zhi, Xu Li, Zhenjiang Zhang, Qiguo Guo, Kai Li, Xiaopei
Copyright Year	2014
Abstract	The ring-opening polymerization of ε-caprolactone (ε-CL) using benzyl alcohol (BnOH) as initiator and 2,4-dinitrobenzenesulfonic acid (DNBA) as catalyst in acetonitrile at room temperature with a [ε-CL]0/[BnOH]0/[DNBA]0 ratio of 40/1/1 has been investigated. The polymerization proceeded to obtain poly(ε-caprolactone) (PCL) with controlled molecular weights. In addition, 1H NMR, SEC, and MALDI-ToF MS measurements demonstrated the initiator residue at the polymer chain end. Furthermore, propargyl alcohol, 5-hexen-1-ol, 2-hydroxyethyl methacrylate, 1,3-propanediol, and pentaerythritol were used as functional initiators to successfully obtain end-functionalized and α,ω-dihydroxy telechelic polyesters. The block copolymerization of PCL and PVL or PTMC provided conditions to afford well-defined poly(ε-caprolactone)-block-poly(δ-valerolactone) (PCL-b-PVL) and poly(ε-caprolactone)-block-poly(trimethylene carbonate) (PCL-b-PTMC).
Starting Page	55716
Ending Page	55722
Page Count	7
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	4
Issue Number	99
Journal	RSC Advances
DOI	10.1039/c4ra09579k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Propargyl Caprolactone (Hydroxyethyl)methacrylate PVL Ring-opening polymerization Polymerization Polymer Pentaerythritol Benzyl alcohol Delta-Valerolactone SEC Trimethylene carbonate Carboxylic acid Ionization Acetonitrile PCL Nuclear magnetic resonance U.S. Securities and Exchange Commission 1,3-Propanediol PTMC
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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