Synthesis and characterization of isotactic poly(p-hydroxystyrene)- block-1,4-trans-polybutadiene by sequential monomer addition using titanium complex with an [OSSO]-type Bis(phenolate) ligand

被引:0
|
作者
Liang, HuaQing [1 ]
Li, Sihan [1 ]
Liu, Dong [1 ]
Liu, Yijun [1 ]
Long, YongJiang [1 ]
Liang, GuoDong [1 ,2 ]
Zhu, FangMing [1 ,2 ]
机构
[1] Sun Yat Sen Univ, Sch Chem, GDHPPC Lab, Guangzhou 510275, Guangdong, Peoples R China
[2] Sun Yat Sen Univ, Sch Chem, Key Lab Polymer Composite & Funct Mat, Minist Educ, Guangzhou 510275, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
Isotactic poly(p-tert-butyldimethylsilyloxystyrene); 1; 4-trans-polybutadiene; Isotactic poly(p-hydroxystyrene); Diblock copolymer; Sequential monomer addition; Deprotection; FUNCTIONALIZED POLYOLEFINS; POLYMERIZATION; COPOLYMERIZATION; COMBINATION; CATALYSIS; STYRENE;
D O I
10.1007/s10965-018-1675-3
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Herein, we demonstrated the synthesis and characterization of a well-defined diblock copolymer consisting of isotactic poly(p-hydroxystyrene) (iP(p-HOS)) and 1,4-trans-polybutadiene (1,4-trans-PBD), iP(p-HOS)-b-1, 4-trans-PBD, by the combination of sequential monomer addition and deprotection. Isospecific living polymerization of p-tert- butyldimethylsilyloxystyrene and living trans-1,4-polymerization of 1,3-butadiene were catalyzed by 1, 4-dithiabutandiyl-2, 2'-bis(6-cumenyl-4-methylphenoxy) titanium dichloride (complex 1) activated by methylaluminoxane (MAO) at room temperature to provide highly stereospecific isotactic poly(p-tert-butyldimethylsilyloxystyrene) (iP(p-TBDMSOS)) and 1,4-trans-polybutadiene (1,4-trans-PBD) with narrow molecular weight distribution. Furthermore, the iP(p-TBDMSOS)-b-1, 4-trans-PBD was prepared via sequential monomer addition in the presence of complex 1 and MAO. The deprotection of the iP(p-TBDMSOS) block was promoted by concentrated hydrochloric acid to produce iP(p-HOS)-b-1, 4-trans-PBD. In addition, the resultant diblock copolymer and intermediate polymers were characterized by gel permeation chromatography, nuclear magnetic resonance and differential scanning calorimeter.
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页数:6
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  • [1] Synthesis and characterization of isotactic poly(p-hydroxystyrene)- block-1,4-trans-polybutadiene by sequential monomer addition using titanium complex with an [OSSO]-type Bis(phenolate) ligand
    HuaQing Liang
    Sihan Li
    Dong Liu
    Yijun Liu
    YongJiang Long
    GuoDong Liang
    FangMing Zhu
    [J]. Journal of Polymer Research, 2019, 26
  • [2] Synthesis of amphiphilic diblock copolymers of isotactic polystyrene-block-isotactic poly(p-hydroxystyrene) using a titanium complex with an [OSSO]-type bis(phenolate) ligand and sequential monomer addition
    Zhou, QiHua
    Liang, HuaQing
    Wei, WanChu
    Meng, ChunFeng
    Long, YongJiang
    Zhu, FangMing
    [J]. RSC ADVANCES, 2017, 7 (32): : 19885 - 19893
  • [3] Synthesis of isotactic polystyrene-block-polyethylene by the combination of sequential monomer addition and hydrogenation of 1,4-trans-polybutadiene block
    Hua-qing Liang
    Qi-hua Zhou
    Yong-jiang Long
    Wan-chu Wei
    Guo-dong Liang
    Qing Wu
    Hai-yang Gao
    Fang-ming Zhu
    [J]. Chinese Journal of Polymer Science, 2017, 35 : 866 - 873
  • [4] Synthesis of Isotactic Polystyrene-block-Polyethylene by the Combination of Sequential Monomer Addition and Hydrogenation of 1,4-Trans-polybutadiene Block
    Hua-qing Liang
    Qi-hua Zhou
    Yong-jiang Long
    Wan-chu Wei
    Guo-dong Liang
    Qing Wu
    Hai-yang Gao
    祝方明
    [J]. Chinese Journal of Polymer Science, 2017, 35 (07) : 866 - 873
  • [5] Synthesis of isotactic polystyrene-block-polyethylene by the combination of sequential monomer addition and hydrogenation of 1,4-trans-polybutadiene block
    Liang, Hua-qing
    Zhou, Qi-hua
    Long, Yong-jiang
    Wei, Wan-chu
    Liang, Guo-dong
    Wu, Qing
    Gao, Hai-yang
    Zhu, Fang-ming
    [J]. CHINESE JOURNAL OF POLYMER SCIENCE, 2017, 35 (07) : 866 - 873