PREPARATION AND CHARACTERIZATION OF WATERBORNE POLYURETHANES MODIFIED WITH BIS(3-(1-METHOXY-2-HYDROXY-PROPOXY) PROPYL) TERMINATED POLYSILOXANES

Xiao-li Zhu; Xu-bao Jiang; Zhi-guo Zhang; Xiang-zheng Kong

doi:10.1007/s10118-010-1009-3

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PREPARATION AND CHARACTERIZATION OF WATERBORNE POLYURETHANES MODIFIED WITH BIS(3-(1-METHOXY-2-HYDROXY-PROPOXY) PROPYL) TERMINATED POLYSILOXANES

Paper | Updated：2021-06-21

- PREPARATION AND CHARACTERIZATION OF WATERBORNE POLYURETHANES MODIFIED WITH BIS(3-(1-METHOXY-2-HYDROXY-PROPOXY) PROPYL) TERMINATED POLYSILOXANES
- Chinese Journal of Polymer Science Vol. 29, Issue 2, Pages: 259-266(2011)
- Affiliations：
  
  Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
- Author bio：
  
  **Xiang-zheng Kong (孔祥正), E-mail: xzkong@ujn.edu.cn
- Funds：
- DOI：10.1007/s10118-010-1009-3
  CLC：
- Received：22 March 2010，
  
  Revised：2010-04-21，
  
  Accepted：29 April 2010，
  
  Published：2011
- Accepted：
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Xiao-li Zhu, Xu-bao Jiang, Zhi-guo Zhang, et al. PREPARATION AND CHARACTERIZATION OF WATERBORNE POLYURETHANES MODIFIED WITH BIS(3-(1-METHOXY-2-HYDROXY-PROPOXY) PROPYL) TERMINATED POLYSILOXANES[J]. Chinese Journal of Polymer Science, 2011, 29(2): 259-266.
DOI：

Xiao-li Zhu, Xu-bao Jiang, Zhi-guo Zhang, et al. PREPARATION AND CHARACTERIZATION OF WATERBORNE POLYURETHANES MODIFIED WITH BIS(3-(1-METHOXY-2-HYDROXY-PROPOXY) PROPYL) TERMINATED POLYSILOXANES[J]. Chinese Journal of Polymer Science, 2011, 29(2): 259-266. DOI： 10.1007/s10118-010-1009-3.

摘要

Abstract

Polyurethanes (PU) were prepared using toluene diisocyanate

polypropylene glycol

ethylene glycol

dimethylolpropionic acid and triethylamine

and a siloxane modified PU (PSU) was obtained through reaction of the PU prepolymers with bis(3-(1-methoxy-2-hydroxypropoxy)propyl) terminated polysiloxanes (PMTS) of different molecular weight

specifically designed for this purpose. Results showed that

with increases in molecular weight of PMTS and its content

viscosity of the final PSU latexes decreased; phase separation of the incorporated PMTS in PSU films increased; the average particle sizes of the latexes varied between 110 nm and 330 nm

and the surface tension in the final latexes was relatively constant regardless of PMTS amount and its molecular weight. It was likely that copolymerized polysiloxanes had trend to enrich on top of the film when PMTS molecular weight was around 2000 and its content above 5 wt%. In general

PMTS modified polyurethane films showed higher performance than those from unmodified waterborne polyurethane latexes.

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