Enhanced Crystallization from the Glassy State of Poly(l-lactic acid) Confined in Anodic Alumina Oxide Nanopores
Abstract
The crystallization behavior of poly( l -lactic acid) (PLLA) infiltrated in anodic alumina oxide templates (AAO) was investigated by differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD). During heating from the glassy state, the crystallization of infiltrated PLLA was unexpectedly enhanced as compared with bulk PLLA. The cold crystallization temperature of infiltrated PLLA from the glassy state was much lower than that of bulk PLLA. The half-crystallization time ( t 1/2 ) of infiltrated PLLA at 75 °C decreased with the diameter of AAO nanopores. The glass transition temperature of PLLA was not influenced by the geometrical confinement. The enhanced crystallization from the glassy state was explained by surface-induced nucleation of AAO walls on PLLA. Our results provide the first observation of enhanced cold crystallization of polymers in confined geometry.
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In PLLA within AAO, the rate of cold crystallization from the glassy state is enhanced relative to bulk.
“Guan et al. [345] found that the rate of cold crystallization from the glassy state was enhanced in AAO with respect to the bulk, as shown in Fig. 40 .”
From Fractionated crystallization in semicrystalline polymers (2021) · cites this paper as Guan et al. [345]
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References 55 · Cited by 59
- Authors
- Guan, Y., Liu, G., Ding, G., Yang, T., Müller, A. J., & Wang, D.
- Affiliations
- Chinese Academy of Sciences (CN)
- Ikerbasque (ES)
- Corresponding author
- Liu, Guoming
- Wang, Dujin
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-04-15
- Volume
- 48
- Issue
- 8
- Pages
- 2526-2533
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2326295854
- Cited by
- 59
- References
- 55
- Citations by year
- 2026: 3 · 2025: 3 · 2024: 1 · 2023: 2 · 2022: 4 · 2021: 7 · 2020: 3 · 2019: 4 · 2018: 7 · 2017: 14 · 2016: 7 · 2015: 4
- FWCI
- 6.84
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Macromolecules (publishedVersion)
- Funders
- National Natural Science Foundation of China (21274156, 51203170)
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Materials Chemistry › Material Dynamics and Properties
- Keywords
- poly(L-lactic acid), nanopores, confined crystallization, cold crystallization, glassy state, polymer crystallization, confined geometries, glass transition temperature, polymer nanocomposites
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