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Journal article
Evaporative crystallization of Poly(ethylene oxide)-b-Poly(L-lactic acid) on water surface
Polymer : the International journal for the Science and Technology of polymers, v 336, 128910
13 Oct 2025
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Abstract
Evaporative crystallization on water surface (ECWS) provides a unique approach to tuning polymer crystallization pathways. Recent studies have shown that poly(l-lactic acid) (PLLA) forms biphasic one-dimensional (1D) and two-dimensional (2D) crystals upon ECWS. In this work, we report on the ECWS behavior of poly(ethylene oxide)-b-(poly(l-lactic acid) (PEO-b-PLLA). Atomic Force Microscopy (AFM) and Transmission Electron Microscopy (TEM) were used to track the structural and morphological evolution of the block copolymer assembly. 1D filaments were exclusively observed, and the formation process was systematically studied. ECWS conditions, such as polymer concentration, evaporation rate, and temperature, were varied to understand the formation mechanism and tune the structure. Rotational flow was introduced to control the 1D filament packing. Quasi-2D liquid crystalline films were obtained.
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Details
- Title
- Evaporative crystallization of Poly(ethylene oxide)-b-Poly(L-lactic acid) on water surface
- Creators
- Christopher Li (Corresponding Author) - Drexel University, Materials Science and EngineeringQian Qian - Drexel UniversityShan Mei - Drexel UniversityShichen Yu - Drexel University, College of EngineeringCarl T Furner - Drexel University
- Publication Details
- Polymer : the International journal for the Science and Technology of polymers, v 336, 128910
- Publisher
- Elsevier
- Number of pages
- 9
- Grant note
- National Science Foundation: DMR 2513217, CMMI 176262
This research was financially supported by the National Science Foundation DMR 2513217 and CMMI 176262.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:001585459800003
- Scopus ID
- 2-s2.0-105012827799
- Other Identifier
- 991022073326904721
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- Web of Science research areas
- Polymer Science