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Synthesis of Poly(lactic acid)-block-poly(N,N-dimethylaminoethyl methacrylate) Copolymers with Controllable Block Structures via Reversible Addition Fragmentation Polymerization from Aminolyzed Poly(lactic acid)
Joint Authors
Yu, Wenwen
Shi, Jiangao
Zhu, Lijing
Zhao, Cunting
Source
International Journal of Polymer Science
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-09
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Poly(lactic acid)-block-poly(N,N-dimethylaminoethyl methacrylate) (PLA-PDMAEMA) copolymers were synthesized from aminolyzed PLA via reversible addition fragmentation (RAFT) polymerization.
PLA undergoes aminolytic degradation with ethylenediamine (EDA).
The kinetics of the aminolysis reaction of PLA at different temperatures and EDA concentrations was investigated in detail.
The molar masses of products rapidly decreased in the initial stage at low aminolytic degree.
Meanwhile, reactive –NH2 and –OH groups were introduced to the end of shorter PLA chains and used as sites to further immobilize the RAFT agent.
PLA-PDMAEMA block copolymers were synthesized.
A pseudo-first-order reaction kinetics was observed for the RAFT polymerization of PDMAEMA at a low conversion.
By controlling the aminolysis reaction of PLA and RAFT polymerization degree of DMAEMA, the length distributions of the PLA and PDMAEMA blocks can be controlled.
This method can be extended to more systems to obtain block copolymers with controllable block structure.
American Psychological Association (APA)
Yu, Wenwen& Zhu, Lijing& Shi, Jiangao& Zhao, Cunting. 2018. Synthesis of Poly(lactic acid)-block-poly(N,N-dimethylaminoethyl methacrylate) Copolymers with Controllable Block Structures via Reversible Addition Fragmentation Polymerization from Aminolyzed Poly(lactic acid). International Journal of Polymer Science،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1175247
Modern Language Association (MLA)
Zhu, Lijing…[et al.]. Synthesis of Poly(lactic acid)-block-poly(N,N-dimethylaminoethyl methacrylate) Copolymers with Controllable Block Structures via Reversible Addition Fragmentation Polymerization from Aminolyzed Poly(lactic acid). International Journal of Polymer Science No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1175247
American Medical Association (AMA)
Yu, Wenwen& Zhu, Lijing& Shi, Jiangao& Zhao, Cunting. Synthesis of Poly(lactic acid)-block-poly(N,N-dimethylaminoethyl methacrylate) Copolymers with Controllable Block Structures via Reversible Addition Fragmentation Polymerization from Aminolyzed Poly(lactic acid). International Journal of Polymer Science. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1175247
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1175247