Investigation of Diblock Copolymers of Poly(ethylene glycol) Methyl Ether-block-Poly(ε-caprolactone) Using MALDI-TOF Mass Spectrometry Technique

Chem. J. Chinese Universities

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Investigation of Diblock Copolymers of Poly(ethylene glycol) Methyl Ether-block-Poly(ε-caprolactone) Using MALDI-TOF Mass Spectrometry Technique

LU Xian-Feng^1,2, LIU Zhi-Qiang¹, Xing Jun-Peng¹, LIU Shu-Ying¹*

1. Changchun Institute of Applied Chemistry, Changchun Center of Mass Spectrometry, Changchun 130022, China;
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China

Received:2007-10-24 Revised:1900-01-01 Online:2008-06-10 Published:2008-06-10
Contact: LIU Shu-Ying

Abstract

Abstract: Poly(ethylene glycol) methyl ether-block-poly(ε-caprolactone)(MPEG-b-PCL) was analyzed by matrix-assisted laser desorption ionization time-of-flight mass spectrometry(MALDI-TOF MS) combined with post-source decay(PSD) technique. The block length and block distribution of the diblock copolymer were clearly determined. The results indicate that MALDI-TOF MS combined with PSD is an excellent method for the study of structures of block copolymer. It provided an important evidence for realizing and applying the diblock copolymer. Furthermore, the analysis method of the diblock copolymer was established.

Key words: Matrix-assisted laser desorption ionization time-of-flight mass spectrometry(MALDI-TOF MS), Post-source decay(PSD), Block copolymer, Block length

CLC Number:

O631
O657

TrendMD:

LU Xian-Feng^1,2, LIU Zhi-Qiang¹, Xing Jun-Peng¹, LIU Shu-Ying¹*. Investigation of Diblock Copolymers of Poly(ethylene glycol) Methyl Ether-block-Poly(ε-caprolactone) Using MALDI-TOF Mass Spectrometry Technique[J]. Chem. J. Chinese Universities, doi: .

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Investigation of Diblock Copolymers of Poly(ethylene glycol) Methyl Ether-block-Poly(ε-caprolactone) Using MALDI-TOF Mass Spectrometry Technique

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