Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Free Radical Polymerization of Dimethyl Amino Ethyl Methacrylate Initiated by Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) Macroazo Initiator : Thermal and Physicochemical Characterization

Hazer, Baki ; Modjinou, Tina ; Langlois, Valérie ; Göktaş, Melahat ; Taşçı, Fulya ; Ashby, Richard D. and Zhang, Baozhong LU (2023) In Journal of Polymers and the Environment 31(8). p.3688-3699
Abstract

A novel macro intermediate based on poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) was synthesized for use in the copolymerization with dimethyl amino ethyl methacrylate (DMAEMA). Methyl amino ethanol was reacted with PHBHHx to prepare a dihydroxy terminated polyester. The hydroxyl ends of the obtained PHBHHx derivatives were capped with 4,4’-azobis cyanopentanoic acid to obtain the PHBHHx macroazo initiator (PHBHHx-AI) for free radical copolymerization of DMAEMA at 70oC. A steady increase in DMAEMA units in the synthesized block copolymer as a function of time was observed. The overall rate constants for the free radical polymerization of DMAEMA initiated by PHBHHx-AI was k = 2.33 × 10− 4... (More)

A novel macro intermediate based on poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) was synthesized for use in the copolymerization with dimethyl amino ethyl methacrylate (DMAEMA). Methyl amino ethanol was reacted with PHBHHx to prepare a dihydroxy terminated polyester. The hydroxyl ends of the obtained PHBHHx derivatives were capped with 4,4’-azobis cyanopentanoic acid to obtain the PHBHHx macroazo initiator (PHBHHx-AI) for free radical copolymerization of DMAEMA at 70oC. A steady increase in DMAEMA units in the synthesized block copolymer as a function of time was observed. The overall rate constants for the free radical polymerization of DMAEMA initiated by PHBHHx-AI was k = 2.33 × 10− 4 Lmol-1s-1. Block copolymers were characterized using the 1 H NMR, FTIR, DSC and TGA techniques.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Dimethyl amino ethyl methacrylate, Macroazo initiator, Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate), Polymerization kinetics
in
Journal of Polymers and the Environment
volume
31
issue
8
pages
3688 - 3699
publisher
Springer
external identifiers
  • scopus:85152069906
ISSN
1566-2543
DOI
10.1007/s10924-023-02857-3
language
English
LU publication?
yes
id
2a64c3c5-3f2c-423f-ae07-e7fca8cfe2be
date added to LUP
2023-07-19 11:37:00
date last changed
2023-10-26 14:46:53
@article{2a64c3c5-3f2c-423f-ae07-e7fca8cfe2be,
  abstract     = {{<p>A novel macro intermediate based on poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) was synthesized for use in the copolymerization with dimethyl amino ethyl methacrylate (DMAEMA). Methyl amino ethanol was reacted with PHBHHx to prepare a dihydroxy terminated polyester. The hydroxyl ends of the obtained PHBHHx derivatives were capped with 4,4’-azobis cyanopentanoic acid to obtain the PHBHHx macroazo initiator (PHBHHx-AI) for free radical copolymerization of DMAEMA at 70<sup>o</sup>C. A steady increase in DMAEMA units in the synthesized block copolymer as a function of time was observed. The overall rate constants for the free radical polymerization of DMAEMA initiated by PHBHHx-AI was k = 2.33 × 10<sup>− 4</sup> Lmol<sup>-1</sup>s<sup>-1</sup>. Block copolymers were characterized using the <sup>1</sup> H NMR, FTIR, DSC and TGA techniques.</p>}},
  author       = {{Hazer, Baki and Modjinou, Tina and Langlois, Valérie and Göktaş, Melahat and Taşçı, Fulya and Ashby, Richard D. and Zhang, Baozhong}},
  issn         = {{1566-2543}},
  keywords     = {{Dimethyl amino ethyl methacrylate; Macroazo initiator; Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate); Polymerization kinetics}},
  language     = {{eng}},
  number       = {{8}},
  pages        = {{3688--3699}},
  publisher    = {{Springer}},
  series       = {{Journal of Polymers and the Environment}},
  title        = {{Free Radical Polymerization of Dimethyl Amino Ethyl Methacrylate Initiated by Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) Macroazo Initiator : Thermal and Physicochemical Characterization}},
  url          = {{http://dx.doi.org/10.1007/s10924-023-02857-3}},
  doi          = {{10.1007/s10924-023-02857-3}},
  volume       = {{31}},
  year         = {{2023}},
}