skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Humidity-dependent compression-induced glass transition of the air–water interfacial Langmuir films of poly(D,L-lactic acid-ran-glycolic acid) (PLGA)

Journal Article · · Soft Matter
DOI:https://doi.org/10.1039/C4SM02535K· OSTI ID:1197045
 [1];  [1];  [2];  [1];  [3];  [3];  [2];  [1]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Korea Univ., Seoul (Korea)
  3. Univ. of Chicago, Chicago, IL (United States)

Constant rate compression isotherms of the air–water interfacial Langmuir films of poly(D,L-lactic acid-ran-glycolic acid) (PLGA)show a distinct feature of an exponential increase in surface pressure in the high surface polymer concentration regime. We have previously demonstrated that this abrupt increase in surface pressure is linked to the glass transition of the polymer film, but the detailed mechanism of this process is not understood. In order to obtain a molecular-level understanding of this behavior, we performed extensive characterizations of the surface mechanical, structural and rheological properties of Langmuir PLGA films at the air–water interface, using combined experimental techniques including the Langmuir film balance, X-ray reflectivity and double-wall-ring interfacial rheometry methods.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Science Foundation (NSF)
OSTI ID:
1197045
Journal Information:
Soft Matter, Vol. 11, Issue 28; ISSN 1744-683X
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (37)

Langmuir polymer films: recent results and new perspectives journal January 2012
Glassy Dynamics in Condensed Isolated Polymer Chains journal September 2013
Formation and Collapse of Single-Monomer-Thick Monolayers of Poly( n -butyl acrylate) at the Air−Water Interface journal March 2010
Molecular weight dependence of the second virial coefficient for flexible polymer chains in two dimensions journal September 1989
Scaling Description of Two-Dimensional Chain Conformations in Polymer Monolayers journal November 1980
A critical look at measurements of the .nu. exponent for polymer chains in two dimensions journal September 1988
Concentration dependence of surface pressure of polyether monolayers at the air-water interface journal December 1984
Experimental determination of the temperature-concentration diagram of Daoud and Jannink in two-dimensional space by surface pressure measurements journal November 1983
Test of scaling laws describing the concentration dependence of surface pressure of a polymer monolayer journal July 1982
Study of the Air–Water Interfacial Properties of Biodegradable Polyesters and Their Block Copolymers with Poly(ethylene glycol) journal July 2012
Surface films of polymers. Part I. Films of the fluid type journal January 1946
Surface films of polymers. Part II. Films of the coherent and semi-crystalline type journal March 1946
International Tables of the Surface Tension of Water journal July 1983
Macroscopic lateral heterogeneity observed in a laterally mobile immiscible mixed polyelectrolyte–neutral polymer brush journal January 2014
Plasticizing effect of water on poly(lactide-co-glycolide) journal November 2005
Melt Chain Dimensions of Polylactide journal March 2004
Calorimetric Glass Transition of Single Polystyrene Ultrathin Films journal December 2012
On the Origins of the Salt-Concentration-Dependent Instability and Lateral Nanoscale Heterogeneities of Weak Polyelectrolyte Brushes: Gradient Brush Experiment and Flory-Type Theoretical Analysis journal February 2010
Evidence of Lateral Nanoscale Heterogeneities in Weak Polyelectrolyte Brushes journal December 2008
Surface Rheology of a Polymer Monolayer: Effects of Polymer Chain Length and Compression Rate journal July 2009
Measurement of the mechanical properties of thin films mechanically confined within contacts journal March 2006
Effect of hydrostatic pressure on the mechanical properties of polymers: a brief review of published data journal October 1973
Pressure-induced amorphization and polyamorphism: Inorganic and biochemical systems journal April 2014
Extreme Hardening of PDMS Thin Films Due to High Compressive Strain and Confined Thickness journal July 2011
Quantitative equivalence between polymer nanocomposites and thin polymer films journal August 2005
Thermoelastic behaviour of polyvinylacetate monolayers at the air-water interface: Evidences for liquid-solid phase transition journal February 2000
Cooperative behavior of poly(vinyl alcohol) and water as revealed by molecular dynamics simulations journal September 2010
A double wall-ring geometry for interfacial shear rheometry journal December 2009
The Configurational Statistics of Random Poly(lactic acid) Chains. I. Experimental Results journal May 1969
Effects of polydispersity on linear viscoelasticity in entangled polymer melts journal May 1992
Rheological constitutive equation for a model of soft glassy materials journal July 1998
Synthesis and characterization of elastic PLGA/PCL/PLGA tri-block copolymers journal January 2002
Melt rheology of poly(lactic acid): Entanglement and chain architecture effects journal September 1999
Synthesis and rheology of biodegradable poly(glycolic acid) prepared by melt ring-opening polymerization of glycolide journal March 2009
Nanoparticles for drug delivery to the lungs journal December 2007
Trojan particles: Large porous carriers of nanoparticles for drug delivery journal August 2002
A method for the approximation of the relative humidity in the upper human airways journal July 1985

Cited By (1)

Evaluating polymeric biomaterial–environment interfaces by Langmuir monolayer techniques journal May 2017