Evaluation of various surfactants and compatibilizers for preparation of PS/clay nanocomposites by melt compounding (Record no. 47554)

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control field 20250625153921.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-13354
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245 10 - TITLE STATEMENT
Title Evaluation of various surfactants and compatibilizers for preparation of PS/clay nanocomposites by melt compounding
490 0# - SERIES STATEMENT
Volume/sequential designation Journal of Polymer Engineering, 30(5-7), p.377-411, 2010
520 3# - SUMMARY, ETC.
Summary, etc. Thennal stabil ity of selected phosphonium organoc1ays was compared to that of sorne ammonium organoc1ays. Both basal spacing and thermal stability of the phosphonium organoc1ays indicated the suitability of phosphonium surfactants for the melt compounding of polystyrene (PS)/c1ay nanocomposites. Surfactants with high molecular weights and organoc1ays with high values of surface tension at the processing temperature and larger basal spacing yielded the best results. Moreover, several functionalized styrene polyrners with tenninal polar groups and a styrene-maleic anhydride (SMA)copolyrner were evaluated as compatibilizers for the melt processing of PS/c1ay nanocomposites. Compatibilizers with the higher molecular weights and greater functionality yielded better results. Nanocomposites based on PS/SMAlorganoc1ay yielded nanocomposites with the best levels of intercalation/exfoliation, based on x-ray diffraction (XRD), scarming electron microscopy (SEM)and transmission electron microscopy (TEM)analyses. Predictions based on surface energy considerations were supported by SEM and energy dispersive x-ray (EDX)element analysis, showing that the c1ay was preferentially located within the SMA phase or at the SMAlPS interface. The nanocomposites showed marginal improvement in mechanical properties and significant improvement in oxygen barrier behavior.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Uribe-Calderon, J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Kamal, M.R.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1i7y4zASMvAvHb-X_irBaGCBLZms32Hdu/view?usp=drivesdk">https://drive.google.com/file/d/1i7y4zASMvAvHb-X_irBaGCBLZms32Hdu/view?usp=drivesdk</a>
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-13354 25.06.2025 25.06.2025 Documentos solicitados