引用本文:
Jie Zhang, Xing Yuan Zhang, Jia Bing Dai, Wei Hu Li. Synthesis and characterization of yellow water-borne polyurethane using a diol colorant as extender[J]. Chinese Chemical Letters,
2010, 21(2): 143-145.
doi:
10.1016/j.cclet.2009.10.018
Citation: Jie Zhang, Xing Yuan Zhang, Jia Bing Dai, Wei Hu Li. Synthesis and characterization of yellow water-borne polyurethane using a diol colorant as extender[J]. Chinese Chemical Letters, 2010, 21(2): 143-145. doi: 10.1016/j.cclet.2009.10.018
Citation: Jie Zhang, Xing Yuan Zhang, Jia Bing Dai, Wei Hu Li. Synthesis and characterization of yellow water-borne polyurethane using a diol colorant as extender[J]. Chinese Chemical Letters, 2010, 21(2): 143-145. doi: 10.1016/j.cclet.2009.10.018
Synthesis and characterization of yellow water-borne polyurethane using a diol colorant as extender
摘要:
A novel and facile method toward a series of yellow water-borne polyurethane was developed by using an intrinsically colored diol in this paper.The yellow aqueous dispersion PCLD-HENA-PU was synthesized based on isophorone diisocyanate(IPDI),polycaprolactonediol(PCLD)and 2,2-dimethylol propionic acid(DMPA)using a yellow diol N,N-bis(2-hydroxyethyl)-4-nitroaniline(HENA)as a chain extender.Due to the complete reaction of OH group in colorant HENA with NCO group in diisocyanate,a series of stable yellow polyurethanes could be obtained conveniently and easily.The structure of PCLD-HENA-PUs was confirmed by means of Fourier transform infrared spectroscopy.The UV-visible absorption analysis showed a blue shift effect of about 7 nm when HENA was blocked into polyurethane chain.The absorption intensity of PCLD-HENA-PUs increased with increasing HENA content.It was found that the tensile strength enhanced from 8.6 to 19.6 MPa with HENA content increased from O to 18.0%,while the extensibility decreased from 449 to 300%.The thermal gravimetric analysis presented that the initial decompose temperature began from about 250℃,and had a little increase with increasing the HENA content.
English
Synthesis and characterization of yellow water-borne polyurethane using a diol colorant as extender
Abstract:
A novel and facile method toward a series of yellow water-borne polyurethane was developed by using an intrinsically colored diol in this paper.The yellow aqueous dispersion PCLD-HENA-PU was synthesized based on isophorone diisocyanate(IPDI),polycaprolactonediol(PCLD)and 2,2-dimethylol propionic acid(DMPA)using a yellow diol N,N-bis(2-hydroxyethyl)-4-nitroaniline(HENA)as a chain extender.Due to the complete reaction of OH group in colorant HENA with NCO group in diisocyanate,a series of stable yellow polyurethanes could be obtained conveniently and easily.The structure of PCLD-HENA-PUs was confirmed by means of Fourier transform infrared spectroscopy.The UV-visible absorption analysis showed a blue shift effect of about 7 nm when HENA was blocked into polyurethane chain.The absorption intensity of PCLD-HENA-PUs increased with increasing HENA content.It was found that the tensile strength enhanced from 8.6 to 19.6 MPa with HENA content increased from O to 18.0%,while the extensibility decreased from 449 to 300%.The thermal gravimetric analysis presented that the initial decompose temperature began from about 250℃,and had a little increase with increasing the HENA content.
扫一扫看文章
计量
- PDF下载量: 0
- 文章访问数: 868
- HTML全文浏览量: 34
下载:
