Synthesis and crystallization of well-defined biodegradable miktoarm star PEG-PCL-PLLA copolymer

Xinyu Peng; Yixin Zhang; Ying Chen; Sai Li; Bin He

doi:10.1016/j.matlet.2016.02.057

Synthesis and crystallization of well-defined biodegradable miktoarm star PEG-PCL-PLLA copolymer

Xinyu Peng, Yixin Zhang, Ying Chen, Sai Li, Bin He

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

A well-defined miktoarm star copolymer (μ-PEG-PCL-PLLA) was synthesized and the crystallization behavior of the copolymers was investigated. The structure of copolymer was confirmed by ¹H NMR, the molecular weight and molecular weight distribution were studied by GPC. XRD and POM were used to study the crystallization behavior of the miktoarm star copolymers. The XRD spectra showed that the miktoarm star copolymer showed low crystallinity for the joint of terminal, which limited the mobility of polymeric chains. The POM photographs revealed that PCL segments formed spherulites with PLLA crystalline grains as nucleus due to the good compatibility between PCL and PLLA.

Original language	English (US)
Pages (from-to)	83-86
Number of pages	4
Journal	Materials Letters
Volume	171
DOIs	https://doi.org/10.1016/j.matlet.2016.02.057
State	Published - May 15 2016
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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@article{daa280e305ce4ab7952b1e8fb6c2a5ff,

title = "Synthesis and crystallization of well-defined biodegradable miktoarm star PEG-PCL-PLLA copolymer",

abstract = "A well-defined miktoarm star copolymer (μ-PEG-PCL-PLLA) was synthesized and the crystallization behavior of the copolymers was investigated. The structure of copolymer was confirmed by 1H NMR, the molecular weight and molecular weight distribution were studied by GPC. XRD and POM were used to study the crystallization behavior of the miktoarm star copolymers. The XRD spectra showed that the miktoarm star copolymer showed low crystallinity for the joint of terminal, which limited the mobility of polymeric chains. The POM photographs revealed that PCL segments formed spherulites with PLLA crystalline grains as nucleus due to the good compatibility between PCL and PLLA.",

author = "Xinyu Peng and Yixin Zhang and Ying Chen and Sai Li and Bin He",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V. Allrightsreserved.",

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doi = "10.1016/j.matlet.2016.02.057",

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TY - JOUR

T1 - Synthesis and crystallization of well-defined biodegradable miktoarm star PEG-PCL-PLLA copolymer

AU - Peng, Xinyu

AU - Zhang, Yixin

AU - Chen, Ying

AU - Li, Sai

AU - He, Bin

PY - 2016/5/15

Y1 - 2016/5/15

N2 - A well-defined miktoarm star copolymer (μ-PEG-PCL-PLLA) was synthesized and the crystallization behavior of the copolymers was investigated. The structure of copolymer was confirmed by 1H NMR, the molecular weight and molecular weight distribution were studied by GPC. XRD and POM were used to study the crystallization behavior of the miktoarm star copolymers. The XRD spectra showed that the miktoarm star copolymer showed low crystallinity for the joint of terminal, which limited the mobility of polymeric chains. The POM photographs revealed that PCL segments formed spherulites with PLLA crystalline grains as nucleus due to the good compatibility between PCL and PLLA.

AB - A well-defined miktoarm star copolymer (μ-PEG-PCL-PLLA) was synthesized and the crystallization behavior of the copolymers was investigated. The structure of copolymer was confirmed by 1H NMR, the molecular weight and molecular weight distribution were studied by GPC. XRD and POM were used to study the crystallization behavior of the miktoarm star copolymers. The XRD spectra showed that the miktoarm star copolymer showed low crystallinity for the joint of terminal, which limited the mobility of polymeric chains. The POM photographs revealed that PCL segments formed spherulites with PLLA crystalline grains as nucleus due to the good compatibility between PCL and PLLA.

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U2 - 10.1016/j.matlet.2016.02.057

DO - 10.1016/j.matlet.2016.02.057

M3 - Article

AN - SCOPUS:84958794124

SN - 0167-577X

VL - 171

SP - 83

EP - 86

JO - Materials Letters

JF - Materials Letters

ER -

Synthesis and crystallization of well-defined biodegradable miktoarm star PEG-PCL-PLLA copolymer

Abstract

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