The effects of plasticizers on the dynamic mechanical and thermal properties of poly(lactic acid)
(2002) In Journal of Applied Polymer Science 86(5). p.1227-1234- Abstract
- Poly(lactic acid) (PLA) was blended with five plasticizers in a batchwise mixer and pressed into films. The films were analyzed by means of dynamic mechanical analysis and differential scanning calorimetry to investigate the properties of the blends. Triacetine and tributyl citrate proved to be effective as plasticizers when blended with PLA. The glass transition temperature of PLA decreased linearly as the plasticizer content was increased. Both plasticizers were miscible with PLA to an extent of similar to 25 wt %. At this point, the PLA seemed to be saturated with plasticizer and the blends tended to phase separate when more plasticizer was added. There were also signs of phase separation occurring in samples heated at 35, 50, and... (More)
- Poly(lactic acid) (PLA) was blended with five plasticizers in a batchwise mixer and pressed into films. The films were analyzed by means of dynamic mechanical analysis and differential scanning calorimetry to investigate the properties of the blends. Triacetine and tributyl citrate proved to be effective as plasticizers when blended with PLA. The glass transition temperature of PLA decreased linearly as the plasticizer content was increased. Both plasticizers were miscible with PLA to an extent of similar to 25 wt %. At this point, the PLA seemed to be saturated with plasticizer and the blends tended to phase separate when more plasticizer was added. There were also signs of phase separation occurring in samples heated at 35, 50, and 80degreesC, most likely because of the material undergoing crystallization. The presence of the plasticizers induced an increased crystallinity by enhancing the molecular mobility. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/330035
- author
- Ljungberg, Nadia LU and Wesslén, Bengt LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- dynamic mechanical, thermal properties, poly(lactic acid), plasticizers, properties, films
- in
- Journal of Applied Polymer Science
- volume
- 86
- issue
- 5
- pages
- 1227 - 1234
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000177612200023
- scopus:0037206447
- ISSN
- 1097-4628
- DOI
- 10.1002/app.11077
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)
- id
- 3669288b-92e5-4c7c-8f62-43ca5bd264bb (old id 330035)
- date added to LUP
- 2016-04-01 12:29:50
- date last changed
- 2022-03-29 01:40:54
@article{3669288b-92e5-4c7c-8f62-43ca5bd264bb, abstract = {{Poly(lactic acid) (PLA) was blended with five plasticizers in a batchwise mixer and pressed into films. The films were analyzed by means of dynamic mechanical analysis and differential scanning calorimetry to investigate the properties of the blends. Triacetine and tributyl citrate proved to be effective as plasticizers when blended with PLA. The glass transition temperature of PLA decreased linearly as the plasticizer content was increased. Both plasticizers were miscible with PLA to an extent of similar to 25 wt %. At this point, the PLA seemed to be saturated with plasticizer and the blends tended to phase separate when more plasticizer was added. There were also signs of phase separation occurring in samples heated at 35, 50, and 80degreesC, most likely because of the material undergoing crystallization. The presence of the plasticizers induced an increased crystallinity by enhancing the molecular mobility.}}, author = {{Ljungberg, Nadia and Wesslén, Bengt}}, issn = {{1097-4628}}, keywords = {{dynamic mechanical; thermal properties; poly(lactic acid); plasticizers; properties; films}}, language = {{eng}}, number = {{5}}, pages = {{1227--1234}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Journal of Applied Polymer Science}}, title = {{The effects of plasticizers on the dynamic mechanical and thermal properties of poly(lactic acid)}}, url = {{http://dx.doi.org/10.1002/app.11077}}, doi = {{10.1002/app.11077}}, volume = {{86}}, year = {{2002}}, }