Intercalation and exfoliation relationships in melt-processed poly(styrene-co-acrylonitrile)/montmorillonite nanocomposites (Record no. 41500)
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| fixed length control field | 02551nam a2200253Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625124656.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-7169 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Intercalation and exfoliation relationships in melt-processed poly(styrene-co-acrylonitrile)/montmorillonite nanocomposites |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Polymer, 46, p.2621-2637, 2005 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | The effects of surfactant structure on the morphology and mechanical properties of melt processed mixtures of poly(styrene-coacrylonitrile)(SAN)with montmorillonite (MMT)organoclays were examined. The composite which exhibited the greatest change in gallery height, the highest modulus, and greatest aspect ratio (w50)was produced from an organoclay with the lowest molecular weight surfactant, dimethyl hydrogenated tallow ammonium. For ammonium ion surfactants with w18 carbon hydrophobic tail(s), stack swelling, as measured by wide angle X-ray scattering (WAXS), was more strongly related to the reduced surfactant molecular weight than polarity or aromaticity of the head group substituents. A surfactant with a shorter tail length (w12 vs. 18 carbon tail length)resulted in unswollen stacks in the composite. The swelling of the organoclay galleries seems to be explained by a balance of some favorable interactions of SAN with the montmorillonite platelet surface, versus repulsive mixing of aliphatic surfactant substituents with polar SAN. The repulsive nature of the latter increases as molecular weight of the head group substituents increases. A third factor is the platelet-platelet attraction that seems to explain the lack of swelling in the case of the shorter tail surfactant. Mechanical properties are also reported; and the composite moduli were found to compare to theoretical predictions using the Halpin-Tsai theory based on aspect ratios determined by transmission electron microscopy (TEM). The experimental aspect ratios do not seem to correlate with the WAXS gallery shifts. This and other evidence suggest that exfoliation in melt-processed SAN/MMT composites is not explained by intercalation behavior. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | SAN |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | MONTMORILLONITE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | NANOCOMPOSITE |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Stretz, H.A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Paul, D.R. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Li, R. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Keskkula, H. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Cassidy, P.E. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/17wcXXACp-53K3w2r5ZDXzKTh0LTdg_Py/view?usp=drivesdk">https://drive.google.com/file/d/17wcXXACp-53K3w2r5ZDXzKTh0LTdg_Py/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
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| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-7169 | 25.06.2025 | 25.06.2025 | Documentos solicitados |