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Castro‐García PG, Vasquez‐Garcia SR, Flores‐Ramirez N, Rico JL, Abdel‐Gawwad HA, García‐González L, Domratcheva‐Lvova L, Fernández‐Quiroz D. Polymeric films prepared from starch and a crosslinker extracted from avocado seeds. J Appl Polym Sci 2022. [DOI: 10.1002/app.52725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Nelly Flores‐Ramirez
- Department of Wood Engineering and Technology Universidad Michoacana de San Nicolás de Hidalgo Morelia Mexico
| | - Jose Luis Rico
- Department of Chemical Engineering Universidad Michoacana de San Nicolás de Hidalgo Morelia Mexico
| | - Hamdy Ahmed Abdel‐Gawwad
- Raw Building Materials Research and Processing Technology Institute Housing and Building National Research Center (HBRC) Cairo Egypt
| | | | - Lada Domratcheva‐Lvova
- Department of Wood Engineering and Technology Universidad Michoacana de San Nicolás de Hidalgo Morelia Mexico
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Jiamjariyatam R, Kongpensook V, Pradipasena P. Prediction Models for Textural Properties of Puffed Rice Starch Product by Relative Crystallinity. J FOOD QUALITY 2016. [DOI: 10.1111/jfq.12218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Rossaporn Jiamjariyatam
- Faculty of Science, Department of Home Economics; Srinakharinwirot University; 114 Sukhumvit 23, Bangkok Thailand
| | - Varapha Kongpensook
- Faculty of Science, Department of Food Technology; Chulalongkorn University; Phyathai Road Patumwan, Bangkok 10330 Thailand
| | - Pasawadee Pradipasena
- Faculty of Science, Department of Food Technology; Chulalongkorn University; Phyathai Road Patumwan, Bangkok 10330 Thailand
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Bosker WTE, Cohen Stuart MA, Norde W. (Quasi-) 2D aggregation of polystyrene-b-dextran at the air-water interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:2667-2675. [PMID: 23379784 DOI: 10.1021/la304797r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Polystyrene-b-dextran (PS-b-Dextran) copolymers can be used to prepare dextran brushes at solid surfaces, applying Langmuir-Blodgett deposition. When recording the interfacial pressure versus area isotherms of a PS-b-Dextran monolayer, time-dependent hysteresis was observed upon compression and expansion. We argue that this is due to (quasi-) 2D aggregation of the copolymer at the air-water surface, with three contributions. First, at large area per molecule, a zero surface pressure is measured; we ascribe this to self-assembly of block copolymers into surface micelles. At intermediate area we identify a second regime ("desorption regime") where aggregation into large patches occurs due to van der Waals attraction between PS blocks. At high surface pressure ("brush regime") we observe hysteretic behavior attributed to H-bonding between dextran chains. When compared to hysteresis of other amphiphilic diblock copolymers (also containing PS, e.g., polystyrene-b-poly(ethylene oxide)) a general criterion can be formulated concerning the extent of hysteresis: when the hydrophobic (PS) block is of equal size as (or bigger than) the hydrophilic block, the hysteresis is maximal. The (quasi-) 2D aggregation of PS-b-Dextran has significant implications for the preparation of dextran brushes at solid surfaces using Langmuir-Blodgett deposition. For each grafting density the monolayer needs to relax, up to several hours, prior to transfer.
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Affiliation(s)
- Wouter T E Bosker
- Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB Wageningen, The Netherlands
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Hsu CI, Lai VMF, Yeh AI, Lii CY. Effects of temperature and glycerol on the de-organisation of hsian-tsao (Mesona procumbens Hemsl) polysaccharide solution by electron spin resonance spectroscopy. Food Hydrocoll 2004. [DOI: 10.1016/s0268-005x(03)00090-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bosker WTE, Ágoston K, Cohen Stuart MA, Norde W, Timmermans JW, Slaghek TM. Synthesis and Interfacial Behavior of Polystyrene−Polysaccharide Diblock Copolymers. Macromolecules 2003. [DOI: 10.1021/ma020925u] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- W. T. E. Bosker
- Department of Physical Chemistry and Colloid Science, Wageningen University, 6703 HB Wageningen, The Netherlands; Agrotechnological Research Institute ATO, Wageningen UR, 6700 AA Wageningen, The Netherlands; and TNO Nutrition and Food Research, 3704 HE Zeist, The Netherlands
| | - K. Ágoston
- Department of Physical Chemistry and Colloid Science, Wageningen University, 6703 HB Wageningen, The Netherlands; Agrotechnological Research Institute ATO, Wageningen UR, 6700 AA Wageningen, The Netherlands; and TNO Nutrition and Food Research, 3704 HE Zeist, The Netherlands
| | - M. A. Cohen Stuart
- Department of Physical Chemistry and Colloid Science, Wageningen University, 6703 HB Wageningen, The Netherlands; Agrotechnological Research Institute ATO, Wageningen UR, 6700 AA Wageningen, The Netherlands; and TNO Nutrition and Food Research, 3704 HE Zeist, The Netherlands
| | - W. Norde
- Department of Physical Chemistry and Colloid Science, Wageningen University, 6703 HB Wageningen, The Netherlands; Agrotechnological Research Institute ATO, Wageningen UR, 6700 AA Wageningen, The Netherlands; and TNO Nutrition and Food Research, 3704 HE Zeist, The Netherlands
| | - J. W. Timmermans
- Department of Physical Chemistry and Colloid Science, Wageningen University, 6703 HB Wageningen, The Netherlands; Agrotechnological Research Institute ATO, Wageningen UR, 6700 AA Wageningen, The Netherlands; and TNO Nutrition and Food Research, 3704 HE Zeist, The Netherlands
| | - T. M. Slaghek
- Department of Physical Chemistry and Colloid Science, Wageningen University, 6703 HB Wageningen, The Netherlands; Agrotechnological Research Institute ATO, Wageningen UR, 6700 AA Wageningen, The Netherlands; and TNO Nutrition and Food Research, 3704 HE Zeist, The Netherlands
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Smits ALM, Wübbenhorst M, Kruiskamp PH, van Soest JJG, Vliegenthart JFG, van Turnhout J. Structure Evolution in Amylopectin/Ethylene Glycol Mixtures by H-bond Formation and Phase Separation Studied with Dielectric Relaxation Spectroscopy. J Phys Chem B 2001. [DOI: 10.1021/jp003289f] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. L. M. Smits
- Bijvoet Center for Biomolecular Research, Utrecht University, Faculty of Chemistry, P.O. Box 80075, 3508 TB Utrecht, The Netherlands, Department of Polymer Materials & Engineering, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Agrotechnological Research Institute ATO, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - M. Wübbenhorst
- Bijvoet Center for Biomolecular Research, Utrecht University, Faculty of Chemistry, P.O. Box 80075, 3508 TB Utrecht, The Netherlands, Department of Polymer Materials & Engineering, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Agrotechnological Research Institute ATO, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - P. H. Kruiskamp
- Bijvoet Center for Biomolecular Research, Utrecht University, Faculty of Chemistry, P.O. Box 80075, 3508 TB Utrecht, The Netherlands, Department of Polymer Materials & Engineering, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Agrotechnological Research Institute ATO, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - J. J. G. van Soest
- Bijvoet Center for Biomolecular Research, Utrecht University, Faculty of Chemistry, P.O. Box 80075, 3508 TB Utrecht, The Netherlands, Department of Polymer Materials & Engineering, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Agrotechnological Research Institute ATO, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - J. F. G. Vliegenthart
- Bijvoet Center for Biomolecular Research, Utrecht University, Faculty of Chemistry, P.O. Box 80075, 3508 TB Utrecht, The Netherlands, Department of Polymer Materials & Engineering, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Agrotechnological Research Institute ATO, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - J. van Turnhout
- Bijvoet Center for Biomolecular Research, Utrecht University, Faculty of Chemistry, P.O. Box 80075, 3508 TB Utrecht, The Netherlands, Department of Polymer Materials & Engineering, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Agrotechnological Research Institute ATO, P.O. Box 17, 6700 AA Wageningen, The Netherlands
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