Study on siloxane‐modified polyurethane dispersions from various polydimethylsiloxanes
- 28 June 2005
- journal article
- research article
- Published by Wiley in Journal of Polymer Science Part A: Polymer Chemistry
- Vol. 43 (16), 3482-3490
- https://doi.org/10.1002/pola.20805
Abstract
In this work, various polydimethylsiloxanes (PDMS) are incorporated with isophorone diisocyanate (IPDI), 2,2‐bis(hydroxymethyl)propionic acid (DMPA), and poly(tetramethylene oxide) (PTMO) by the prepolymer process to synthesize a series of siloxane‐modified polyurethane dispersions (PUDs) with 35 wt % solid content, viscosities of 20–100 cps, and particle sizes of 40–130 nm. Hydrophobic PDMS was introduced into the PU chain either based on random distribution or through the block segment arrangement. We also establish the composition‐property relationship of PDMS‐PUD, which includes PDMS's type and molecular weight and PDMS‐PUD film's contact angle and mechanical property. The tensile strength of PDMS‐PUD film is decreased with increasing amount of PDMS. Scanning electron microscopy for chemical element analysis indicated that PDMS migrated to the surface much more easily in the block arrangement than in the random distribution. Also, some PDMS‐PUD films show a peau‐like surface, so their PUDs are considered promising to be used in processes for textiles. © 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 43: 3482–3490, 2005Keywords
This publication has 12 references indexed in Scilit:
- Synthesis and properties of polyurethane modified with an aminoethylaminopropyl-substituted polydimethylsiloxane. II. Waterborne polyurethanesJournal of Applied Polymer Science, 2000
- Synthesis and properties of polyurethane modified with aminoethylaminopropyl poly(dimethyl siloxane)Journal of Applied Polymer Science, 1999
- Structure and physical properties of segmented polyurethane elastomers containing chemical crosslinks in the hard segmentJournal of Polymer Science Part B: Polymer Physics, 1998
- Development of wear-resistant thermoplastic polyurethanes by blending with poly(dimethyl siloxane). II. A packing modelJournal of Applied Polymer Science, 1997
- Polysiloxaneurethanes: new polymers for potential coating applicationsProgress in Organic Coatings, 1996
- Synthesis of new siloxane urethane block copolymers and their propertiesJournal of Polymer Science Part A: Polymer Chemistry, 1994
- Changes in structure and properties due to mechanical fatigue for polyurethanes containing poly(dimethyl siloxane)Polymer, 1994
- Synthesis and properties of multiblock copolymers based on polydimethylsiloxane and polyamides from dicarboxylic acid and diisocyanate terminated functionalitiesJournal of Polymer Science Part A: Polymer Chemistry, 1991
- Structure and orientational behaviour of polyurethane containing polydimethylsiloxanePolymer, 1990
- Properties of urethane elastomersPolymer Bulletin, 1989