Source:http://linkedlifedata.com/resource/pubmed/id/15248735
| Subject | Predicate | Object | Context |
|---|---|---|---|
| pubmed-article:15248735 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:15248735 | lifeskim:mentions | umls-concept:C0332437 | lld:lifeskim |
| pubmed-article:15248735 | lifeskim:mentions | umls-concept:C0032521 | lld:lifeskim |
| pubmed-article:15248735 | lifeskim:mentions | umls-concept:C0597177 | lld:lifeskim |
| pubmed-article:15248735 | lifeskim:mentions | umls-concept:C2587213 | lld:lifeskim |
| pubmed-article:15248735 | lifeskim:mentions | umls-concept:C0086296 | lld:lifeskim |
| pubmed-article:15248735 | lifeskim:mentions | umls-concept:C1301820 | lld:lifeskim |
| pubmed-article:15248735 | lifeskim:mentions | umls-concept:C0332624 | lld:lifeskim |
| pubmed-article:15248735 | lifeskim:mentions | umls-concept:C0276096 | lld:lifeskim |
| pubmed-article:15248735 | pubmed:issue | 15 | lld:pubmed |
| pubmed-article:15248735 | pubmed:dateCreated | 2004-7-13 | lld:pubmed |
| pubmed-article:15248735 | pubmed:abstractText | The combination of precision-controlled weight loss measurements and spectroscopic surface FT-IR analysis allowed us to identify unique behaviors of poly(methyl methacrylate) (p-MMA). When MMA and n-butyl acrylate (nBA) are polymerized into p-MMA and p-nBA homopolymer blends, MMA/nBA random copolymers, and p-MMA/p-nBA core-shell morphologies, a controlled mobility and stratification of low molecular weight components occurs in films formed from coalesced colloidal dispersions. Due to different affinities toward water, p-MMA and p-nBA are capable of releasing water at different rates, depending upon particle morphological features of initial dispersions. As coalescence progresses, water molecules are released from the high free volume p-nBA particles, whereas p-MMA retains water molecules for the longest time due to its hydrophilic nature. As a result, water losses at extended coalescence times are relatively small for p-MMA. MMA/nBA copolymer and p-MMA/p-nBA blends follow the same trends, although the magnitudes of changes are not as pronounced. The p-MMA/p-nBA core-shell behavior resembles that of p-nBA homopolymer, which is attributed to significantly lower content of the p-MMA component in particles. Annealing of coalesced colloidal films at elevated temperatures causes migration of SDOSS to the F-A interface, but for films containing primarily p-nBA, reverse diffusion back into the bulk is observed. These studies illustrate that the combination of different particle morphologies and temperatures leads to controllable permeation processes through polymeric films. | lld:pubmed |
| pubmed-article:15248735 | pubmed:language | eng | lld:pubmed |
| pubmed-article:15248735 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:15248735 | pubmed:status | PubMed-not-MEDLINE | lld:pubmed |
| pubmed-article:15248735 | pubmed:month | Jul | lld:pubmed |
| pubmed-article:15248735 | pubmed:issn | 0743-7463 | lld:pubmed |
| pubmed-article:15248735 | pubmed:author | pubmed-author:UrbanMarek... | lld:pubmed |
| pubmed-article:15248735 | pubmed:author | pubmed-author:LestageDavid... | lld:pubmed |
| pubmed-article:15248735 | pubmed:copyrightInfo | Copyright 2004 American Chemical Society | lld:pubmed |
| pubmed-article:15248735 | pubmed:issnType | lld:pubmed | |
| pubmed-article:15248735 | pubmed:day | 20 | lld:pubmed |
| pubmed-article:15248735 | pubmed:volume | 20 | lld:pubmed |
| pubmed-article:15248735 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:15248735 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:15248735 | pubmed:pagination | 6443-9 | lld:pubmed |
| pubmed-article:15248735 | pubmed:year | 2004 | lld:pubmed |
| pubmed-article:15248735 | pubmed:articleTitle | Particle morphology as a control of permeation in polymer films obtained from MMA/nBA colloidal dispersions. | lld:pubmed |
| pubmed-article:15248735 | pubmed:affiliation | School of Polymers and High Performance Materials, Shelby F. Thames Polymer Science Research Center, University of Southern Mississippi, Hattiesburg, Mississippi 39406, USA. | lld:pubmed |
| pubmed-article:15248735 | pubmed:publicationType | Journal Article | lld:pubmed |