Characterization of poly(ethylene oxide)-b-poly(L-laciide) block copolymer by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry
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- Title
- Characterization of poly(ethylene oxide)-b-poly(L-laciide) block copolymer by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry
- Authors
- Hong, JM; Cho, DY; Chang, TY; Shim, WS; Lee, DS
- Date Issued
- 2003-10
- Publisher
- POLYMER SOC KOREA
- Abstract
- A poly(ethylene oxide)-b-poly(L-lactide) diblock copolymer (PEO-b-PLLA) is characterized by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and a block length distribution map is constructed. Although the MALDI-TOF mass spectrum of PEO-b-PLLA is very complicated, most of the polymer species were identified by isolating the overlapped isotope patterns and by fitting the overlapped peaks to the Schulz-Zimm distribution function. Reconstructed MALDI-TOF MS spectrum was nearly identical to the measured spectrum and this method shows its potential to be developed as an easy and fast analysis method of low molecular weight block copolymers.
- Keywords
- PEO-b-PLLA; block copolymer; MALDI-TOF MS; isotope; molecular weight distribution; GRADIENT INTERACTION CHROMATOGRAPHY; DESORPTION IONIZATION; LIQUID-CHROMATOGRAPHY; LENGTH DISTRIBUTIONS; ALCOHOL ETHOXYLATES; RETENTION MECHANISM; DIBLOCK COPOLYMERS; COMPLEX POLYMERS; AQUEOUS-SOLUTION; PHASE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/18036
- DOI
- 10.1007/BF03218374
- ISSN
- 1598-5032
- Article Type
- Article
- Citation
- MACROMOLECULAR RESEARCH, vol. 11, no. 5, page. 341 - 346, 2003-10
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