| 光谱学与光谱分析 |
|
|
|
|
|
| Studies on the Ultraviolet Spectra of PU/PA Composite Emulsions |
| CHAI Shu-ling, YANG Li-yan, LI Xiao-meng, TAN Hui-min* |
| Material Science and Engineering Institute, Beijing Institute of Technology, Beijing 100081, China |
|
|
|
|
Abstract PUA composite particles were prepared by seeded surfactant-free emulsion polymerization, the polyurethane (PU) aqueous dispersions were used as seed particles. The studies on the UV spectra of PUA composite emulsions were carried out, the results showed that the maximum absorbance of n-π* transition evidently shifted to red wavelength with increasing the concentration of the aqueous PU seed dispersions; the UV absorbance of PU dispersions decreased with increasing the amounts of the hydrophilic chain-extender and increased with increasing the NCO/OH molar ratios; when the hydrophilic chain-extender was 7.5%, the UV absorbance of PUA composite emulsion reached the lowest, the type of initiators showed less influence on the absorbance of UV spectra of PUA composite emulsions. Moreover, the UV spectra of PU dispersions and the diameters of PUA composite emulsion particles were nearly correlative.
|
|
Received: 2003-11-26
Accepted: 2004-03-16
|
|
|
|
Corresponding Authors:
TAN Hui-min
|
|
| Cite this article: |
|
CHAI Shu-ling,YANG Li-yan,LI Xiao-meng, et al. Studies on the Ultraviolet Spectra of PU/PA Composite Emulsions[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(05): 757-760.
|
|
|
|
| URL: |
|
https://www.gpxygpfx.com/EN/Y2005/V25/I05/757 |
[1] Hirose M, Kadowaki F. Progress in Organic Coat, 1997, 31: 157.
[2] Hirose M, Zhou J H, Nagi K. Progress in Organic Coat, 2000, 38: 27.
[3] Min G. Ann. Physik, 1908, 25: 377.
[4] Pretsch E, Bühlmann P, Affolter C. Structure Determination of Organic Compounds Tables of Spectral Data. Berlin: Springer-Verlag Berlin Heidelberg, Third ed, 2000.
[5] QIAN Zhen, WANG Jin-di, LIN Yi-qing(钱 蓁，王金娣，林毅清). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2000, 20(6): 807.
[6] HUANG Jun-li, BAO Zhi-yu(黄君礼，鲍治宇). Ultraviolet Absorption Spectral Method and Its Application(紫外吸收光谱法及其应用)，Beijing：Publishing Company of Science and Technology of China(北京：中国科学技术出版社)，1992. 12.
|
| [1] |
WANG Peng1, GAO Yong-bao1*, KOU Shao-lei1, MEN Qian-ni1, ZHANG Min1, HE Tao1, YAO Wei2, GAO Rui1, GUO Wen-di1, LIU Chang-rui1. Multi-Objective Optimization of AAS Conditions for Determination of Gold Element Based on Gray Correlation Degree-RSM Model[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(10): 3117-3124. |
| [2] |
KAN Yu-na1, LÜ Si-qi1, SHEN Zhe1, ZHANG Yi-meng1, WU Qin-xian1, PAN Ming-zhu1, 2*, ZHAI Sheng-cheng1, 2*. Study on Polyols Liquefaction Process of Chinese Sweet Gum (Liquidambar formosana) Fruit by FTIR Spectra With Principal Component Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1212-1217. |
| [3] |
ZHANG Xue-fei1, DUAN Ning1, 2*, JIANG Lin-hua1, 2*, CHENG Wen2, YU Zhao-sheng3, LI Wei-dong2, ZHU Guang-bin4, XU Yan-li2. Study on Stability and Sensitivity of Deep Ultraviolet Spectrophotometry Detection System[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(12): 3802-3810. |
| [4] |
CHEN Feng-xia1, YANG Tian-wei2, LI Jie-qing1, LIU Hong-gao3, FAN Mao-pan1*, WANG Yuan-zhong4*. Identification of Boletus Species Based on Discriminant Analysis of Partial Least Squares and Random Forest Algorithm[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(02): 549-554. |
| [5] |
LU Li-min, SHI Bin, TANG Tian-yu, ZHAO Xian-hao, WEI Xiao-nan, TANG Yan-lin*. Spectral Analysis of Epinephrine Molecule Based on Density Functional Theory[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(01): 248-252. |
| [6] |
LIN Yan1, SU Jun-hong1*, TANG Yan-lin2, YANG Dan3. Ultraviolet Spectrum and Excitation Properties Calculations of Vitamin C Based on Density Functional Theory[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(01): 304-309. |
| [7] |
PENG Jian-wen1, XIAO Chong1, SONG Qiang1, PENG Zhong-chao1, HUANG Ruo-sen1, YANG Ya-dong3, TANG Gang1, 2, 3*. Flame Retardant Mechanism Investigation of Thermoplastic Polyurethane Composite/Ammonium Polyphosphate/Aluminum Hydroxide Composites Based on Spectroscopy Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(12): 3901-3908. |
| [8] |
XU Hui-hua, SHI Dong-po*, WU Hao, YIN Xian-qing, ZHENG Yan-cheng, CHEN Wu, LI Geng. Influence of AEO-9 on Ultraviolet Absorbance Spectrum of TDBAC Reduced by β-CD[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(12): 3931-3935. |
| [9] |
YANG Lu-ze, LIU Miao*. Construction of a 3D-QSAR Model With Dual Spectral Effects and Its Application in Molecular Modification of Environmentally Friendly PBBs[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(02): 430-434. |
| [10] |
TONG Ang-xin, TANG Xiao-jun*, ZHANG Feng, WANG Bin. Species Identification of NaCl, NaOH and β-Phenylethylamine Based on Ultraviolet Spectrophotometry and Supervised Pattern Recognition Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(02): 448-453. |
| [11] |
CHEN Ying1，XU Yang-mei1, DI Yuan-jian1，CUI Xing-ning1，ZHANG Jie1，ZHOU Xin-de1，XIAO Chun-yan2， LI Shao-hua3. COD Concentration Prediction Model Based on Multi-Spectral Data Fusion and GANs Algorithm[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(01): 188-193. |
| [12] |
YANG Hui-qin1, 2, ZHANG Bo1, 2, MA Ling1, 2, SHANG Yi1, 2, GAO Dong-li1, 2*. Extraction and Spectroscopic Analysis of Chlorogenic Acid in Diploid Potato[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(12): 3860-3864. |
| [13] |
LI Xin1, SU Cheng-zhi1,2*, YU Dan-yang1, SHENG Yu-bo1, CHANG Chuan1, SHI Lei1, JIANG Ji-guang1. Study on the Influence of Wavelength and Low Temperature on COD Detection by Ultraviolet Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(08): 2403-2408. |
| [14] |
HE Zhi-heng1, XU Rong2, LIN Jun-feng2, YAN Ning1, CHEN Chun-xia3, CHEN Run-quan3, CHAI Xin-sheng1, 3*. Tri-Wavelength UV Spectroscopy Method by Figuring out the Isobestic Points Shift for the Determination of Fluorescent Whitening Agents in Paper Products[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(06): 1758-1762. |
| [15] |
QIU Jia-chu1,4, RUAN Ping2,4*, YONG Jun-guang3, FENG Bo-hua2, 4, HUANG Dai-zheng5, SHEN Hong-tao6. UV-Visible Absorption Spectra and FTIR of Hemoglobin of Healthy People and It Spectroscopic Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(05): 1425-1430. |
|
|
|
|
