Hyperbranched poly(siloxysilane) and its UV curing kinetics

Xin Wang; Xiao Dong Fan; Sheng Jie Wang; Jie Kong; Guo Bin Zhang

Hyperbranched poly(siloxysilane) and its UV curing kinetics

Xin Wang, Xiao Dong Fan, Sheng Jie Wang, Jie Kong, Guo Bin Zhang

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

Abstract

UV-curable hyperbranched poly(siloxysilane) was synthesized via organosilicon polymer bearing silicon hydride end groups and vinyltriallylsilane at the presence of Pt/C catalyst. FT-IR, ¹H-NMR, ¹³C-NMR, ²⁹Si-NMR and SEC/MALLS were employed to identify the structure of the polymer. UV curing experiments were conducted at different temperature, light intensity and atmosphere through UV-DSC. The relations of heating flow and conversion versus time at different temperature, light intensity and atmosphere were studied. The results reveal that the acceleration of light intensity to curing reaction is selective to temperature, and the termination of polymerization by oxygen is not remarkable at room temperature or below. The kinetic parameters were obtained by curvefitting of the experimental data with experiential formula (which is operated in software Matlab7.1). Compared with the experimental curves, the theoretic model showed well accordance. Curing active energy E_a and frequency gene A were obtained by plot of lnk versus -1/RT.

Original language	English
Pages (from-to)	44-47
Number of pages	4
Journal	Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering
Volume	24
Issue number	7
State	Published - Jul 2008

Keywords

Hyperbranched polymer
Kinetics
UV curing

Cite this

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title = "Hyperbranched poly(siloxysilane) and its UV curing kinetics",

abstract = "UV-curable hyperbranched poly(siloxysilane) was synthesized via organosilicon polymer bearing silicon hydride end groups and vinyltriallylsilane at the presence of Pt/C catalyst. FT-IR, 1H-NMR, 13C-NMR, 29Si-NMR and SEC/MALLS were employed to identify the structure of the polymer. UV curing experiments were conducted at different temperature, light intensity and atmosphere through UV-DSC. The relations of heating flow and conversion versus time at different temperature, light intensity and atmosphere were studied. The results reveal that the acceleration of light intensity to curing reaction is selective to temperature, and the termination of polymerization by oxygen is not remarkable at room temperature or below. The kinetic parameters were obtained by curvefitting of the experimental data with experiential formula (which is operated in software Matlab7.1). Compared with the experimental curves, the theoretic model showed well accordance. Curing active energy Ea and frequency gene A were obtained by plot of lnk versus -1/RT.",

keywords = "Hyperbranched polymer, Kinetics, UV curing",

author = "Xin Wang and Fan, {Xiao Dong} and Wang, {Sheng Jie} and Jie Kong and Zhang, {Guo Bin}",

year = "2008",

month = jul,

language = "英语",

volume = "24",

pages = "44--47",

journal = "Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering",

issn = "1000-7555",

publisher = "Chengdu University of Science and Technology",

number = "7",

}

TY - JOUR

T1 - Hyperbranched poly(siloxysilane) and its UV curing kinetics

AU - Wang, Xin

AU - Fan, Xiao Dong

AU - Wang, Sheng Jie

AU - Kong, Jie

AU - Zhang, Guo Bin

PY - 2008/7

Y1 - 2008/7

N2 - UV-curable hyperbranched poly(siloxysilane) was synthesized via organosilicon polymer bearing silicon hydride end groups and vinyltriallylsilane at the presence of Pt/C catalyst. FT-IR, 1H-NMR, 13C-NMR, 29Si-NMR and SEC/MALLS were employed to identify the structure of the polymer. UV curing experiments were conducted at different temperature, light intensity and atmosphere through UV-DSC. The relations of heating flow and conversion versus time at different temperature, light intensity and atmosphere were studied. The results reveal that the acceleration of light intensity to curing reaction is selective to temperature, and the termination of polymerization by oxygen is not remarkable at room temperature or below. The kinetic parameters were obtained by curvefitting of the experimental data with experiential formula (which is operated in software Matlab7.1). Compared with the experimental curves, the theoretic model showed well accordance. Curing active energy Ea and frequency gene A were obtained by plot of lnk versus -1/RT.

AB - UV-curable hyperbranched poly(siloxysilane) was synthesized via organosilicon polymer bearing silicon hydride end groups and vinyltriallylsilane at the presence of Pt/C catalyst. FT-IR, 1H-NMR, 13C-NMR, 29Si-NMR and SEC/MALLS were employed to identify the structure of the polymer. UV curing experiments were conducted at different temperature, light intensity and atmosphere through UV-DSC. The relations of heating flow and conversion versus time at different temperature, light intensity and atmosphere were studied. The results reveal that the acceleration of light intensity to curing reaction is selective to temperature, and the termination of polymerization by oxygen is not remarkable at room temperature or below. The kinetic parameters were obtained by curvefitting of the experimental data with experiential formula (which is operated in software Matlab7.1). Compared with the experimental curves, the theoretic model showed well accordance. Curing active energy Ea and frequency gene A were obtained by plot of lnk versus -1/RT.

KW - Hyperbranched polymer

KW - Kinetics

KW - UV curing

UR - http://www.scopus.com/inward/record.url?scp=49049106178&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:49049106178

SN - 1000-7555

VL - 24

SP - 44

EP - 47

JO - Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering

JF - Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering

IS - 7

ER -

Hyperbranched poly(siloxysilane) and its UV curing kinetics

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Keywords

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