Influence of chemical structure of hard segments on physical properties of polyurethane elastomers: a review

被引：85
作者：
Kojio, Ken [1 ,2 ,3 ]
Nozaki, Shuhei [2 ]
Takahara, Atsushi [1 ,2 ,3 ]
Yamasaki, Satoshi [4 ]
机构：
[1] Kyushu Univ, Inst Mat Chem & Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
[2] Kyushu Univ, Grad Sch Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
[3] Kyushu Univ, WPI I2CNER, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
[4] Mitsui Chem Inc, 580-32 Nagaura, Sodegaura, Chiba 2990265, Japan
来源：
JOURNAL OF POLYMER RESEARCH | 2020年 / 27卷 / 06期
关键词：
Polyurethane; Diisocyanate; Polymer glycol; Hard segment; Microphase-separated structure; Mechanical property; MICROPHASE-SEPARATED STRUCTURE; ALIPHATIC DIISOCYANATE BEARING; CROSS-LINKED POLYMERS; MECHANICAL-PROPERTIES; PHASE-SEPARATION; SPECTROSCOPIC ANALYSIS; AGGREGATION STRUCTURE; THERMOPLASTIC POLYURETHANES; CRYSTALLIZATION BEHAVIOR; CYCLIC CARBONATE;
D O I：
10.1007/s10965-020-02090-9
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Hard segments of polyurethanes (PUs) are generally formed from diisocyanate and diol. Diol can be replaced with triol and thiol. These chemical structures of hard segments strongly affect not only a microphase separated structure but mechanical properties of resultant PUs. In this review, we focus on the relationship between chemical structure like symmetry and bulkiness of diisocyanate and mechanical properties of PU. Then, influence of hard segment content, incorporation of 1,1,1-trimethylol propane with trifunctional groups, and alkyldithiol was reviewed mainly on trans-1,4-bis(isocyanatomethyl) cyclohexane-poly(oxytetramethylene) glycol-based PU.
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页数：13
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