Syn thesis, Characterization of 1,3-Diisopropoxyaloxanes, Their Modification on Calcium Carbonate Filler

高等学校化学研究 ›› 1999, Vol. 15 ›› Issue (2): 110-115.

Syn thesis, Characterization of 1,3-Diisopropoxyaloxanes, Their Modification on Calcium Carbonate Filler

ZHENG Chen-mou, LIAO Kai-rong, CHEN Xiao-wu

Department of Chemistry, Institute of Polymer Science, Zhongshan University, Guangzhou, 510275

收稿日期:1998-03-10 出版日期:1999-04-24 发布日期:2011-08-17
通讯作者: ZHENG Chen-mou
基金资助:
Supported by the Natural Science Foundation(No.970168) of Guangdong Province,China.

Syn thesis, Characterization of 1,3-Diisopropoxyaloxanes, Their Modification on Calcium Carbonate Filler

ZHENG Chen-mou, LIAO Kai-rong, CHEN Xiao-wu

Department of Chemistry, Institute of Polymer Science, Zhongshan University, Guangzhou, 510275

Received:1998-03-10 Online:1999-04-24 Published:2011-08-17
Supported by:
Supported by the Natural Science Foundation(No.970168) of Guangdong Province,China.

摘要/Abstract

摘要： Five 1,3-diisopropoxyaloxanes, i. e., (PrⁱO)RO₂AlOAlO₂R(OPrⁱ) [where R=C₁₆H₃₁(Ⅰ)_C₁₈H₃₅(Ⅱ), _C₉H₁₆CH=CHC₇H₁₅(Ⅲ), _P(OCH₂(C₂H₅)CHC₄H₉)₂(Ⅳ), and _C₁₂H₂₃(Ⅴ), respectively] were syn thesized by the hydrolysiscondensation of aluminium isopropoxide with water, exchange reaction with relevant acids. They were characterized by elemental analysis, determination of molecular weight, IR,, ²⁷Al NMR. The results show that the coordination number of Al atom in the compounds is 5, they exist in monomers in benzene. The analyses of TG/DTG, DTA indicated that both the thermal hydrolysis stability, thermal stability of these compounds are in the following order:Ⅰ<Ⅱ<Ⅲ<Ⅳ. The viscosity determinations of light calcium carbonate(L-CaCO₃)/liquid paraffin suspension systems demonstrated that they had an excellent modification effect on the surface of LCaCO₃ filler, the amount needed to form a monomolecular film on the surface of LCaCO₃ particles is in the order:Ⅰ<Ⅱ<Ⅲ<Ⅳ.

关键词: 1, 3-Diisopropoxyaloxane, Syn thesis, Characterization, Light calcium carbonate, Surface modification

Abstract: Five 1,3-diisopropoxyaloxanes, i. e., (PrⁱO)RO₂AlOAlO₂R(OPrⁱ) [where R=C₁₆H₃₁(Ⅰ)_C₁₈H₃₅(Ⅱ), _C₉H₁₆CH=CHC₇H₁₅(Ⅲ), _P(OCH₂(C₂H₅)CHC₄H₉)₂(Ⅳ), and _C₁₂H₂₃(Ⅴ), respectively] were syn thesized by the hydrolysiscondensation of aluminium isopropoxide with water, exchange reaction with relevant acids. They were characterized by elemental analysis, determination of molecular weight, IR,, ²⁷Al NMR. The results show that the coordination number of Al atom in the compounds is 5, they exist in monomers in benzene. The analyses of TG/DTG, DTA indicated that both the thermal hydrolysis stability, thermal stability of these compounds are in the following order:Ⅰ<Ⅱ<Ⅲ<Ⅳ. The viscosity determinations of light calcium carbonate(L-CaCO₃)/liquid paraffin suspension systems demonstrated that they had an excellent modification effect on the surface of LCaCO₃ filler, the amount needed to form a monomolecular film on the surface of LCaCO₃ particles is in the order:Ⅰ<Ⅱ<Ⅲ<Ⅳ.

Key words: 1,3-Diisopropoxyaloxane, Syn thesis, Characterization, Light calcium carbonate, Surface modification

ZHENG Chen-mou, LIAO Kai-rong, CHEN Xiao-wu . Syn thesis, Characterization of 1,3-Diisopropoxyaloxanes, Their Modification on Calcium Carbonate Filler[J]. 高等学校化学研究, 1999, 15(2): 110-115.

ZHENG Chen-mou, LIAO Kai-rong, CHEN Xiao-wu . Syn thesis, Characterization of 1,3-Diisopropoxyaloxanes, Their Modification on Calcium Carbonate Filler[J]. Chemical Research in Chinese Universities, 1999, 15(2): 110-115.

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Syn thesis, Characterization of 1,3-Diisopropoxyaloxanes, Their Modification on Calcium Carbonate Filler

Syn thesis, Characterization of 1,3-Diisopropoxyaloxanes, Their Modification on Calcium Carbonate Filler

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