采用聚四氢呋喃二醇、4,4’-二苯基甲烷二异氰酸酯、1,4-丁二醇和2,2-二羟甲基丙酸为原料合成了一系列不同羧基含量的聚氨酯(PU), 然后采用乙酸锌对羧酸型PU进行中和, 制备了羧酸型PU离聚体; 利用傅里叶红外光谱仪(FT-IR)、差示扫描量热法仪(DSC)、拉伸测试机和原子力显微镜(AFM)等研究了金属离子引入对PU离聚体的相分离程度、形态结构和力学性能的影响。结果表明: 金属离子的引入使得PU离聚体中氢键作用增强, PU中软硬段间微相分离程度提高, 拉伸强度显著提高; 材料呈现椭圆形微相结构, 证实了PU离聚体中离子基团聚集作用的存在。
所属栏目
材料性能及其应用
收稿日期
2013/4/232014/4/8
作者单位
邹伟:华东理工大学材料科学与工程学院, 上海市先进聚合物材料重点实验室, 上海 200237
王贵友:华东理工大学材料科学与工程学院, 上海市先进聚合物材料重点实验室, 上海 200237
备注
邹伟(1985-), 男, 湖南醴陵人, 硕士研究生。
引用该论文:
ZOU Wei,WANG Gui-you.Structure and Properties of Carboxylate Polyurethane Ionomer[J].Materials for mechancial engineering,2014,38(8):70～75
邹伟,王贵友.羧酸型聚氨酯离聚体的结构与性能[J].机械工程材料,2014,38(8):70～75
被引情况:
【1】
李想,李仙会,吴佳林, "聚氨酯预聚体自乳化细乳液中异氰酸酯基团水解反应模型的建立与验证",机械工程材料
39, 122-126(2015)
参考文献
【1】
MA Ji-sheng, ZHANG Shu-fan, QI Zong-neng. Synthesis and characterization of elastomeric polyurethane/clay nanocomposites［J］.Appl Polym Sci,2001,82: 1444-1448.
【2】
WANG Z, PINNAVAIA T J. Nanolayer reinforcement of elastomeric polyurethane［J］.Chem Mater,1998,10: 3769-3771.
【3】
刘新海,刘智,赵莹, 等.有机蒙脱土改性聚氨酯纺丝研究［J］.高分子学报,2006(4): 645-648.
【4】
SEGAL E, TCHOUDAKOV R, NARKIS M. Thermoplastic polyurethane-carbon black compounds: structure, electrical conductivity and sensing of liquids［J］.Polymer Engineering & Science,2002,42: 2430-2439.
【5】
GRADY B P. Review and critical analysis of the morphology of random ionomers across many length scales［J］.Polymer Engineering & Science,2008,48(6): 1029-1051.
【6】
KIRKMEYMER B P, WEISS R A, WINEY K I. Spherical and vesicular ionic aggregates in Zn-neutralized sulfonated polystyrene ionomers［J］.Journal of Polymer Science Part B: Polymer Physics,2001,39: 477-483.
【7】
VISSER S A, COOPER S L. Analysis of small-angle X-ray scattering data for model polyurethane ionomers: evaluation of hard-sphere models［J］.Macromolecules,1991,24: 2584-2593.
【8】
KUTSUMIZU S, TAGAWA H, MUROGA Y, et al. Small-angle X-ray scattering investigation of noncrystalline poly(ethylene-co-methacrylic acid) ionomers［J］.Macromolecules,2000,33: 3818-3827.
【9】
TACHINO H, HARA H, HIRASAWA E, et al. Dynamic mechanical relaxations of ethylene ionomers［J］.Macromolecules,1993,26: 752-757.
【10】
YANO S, NAGAO N, HATTORI M, et al. Dielectric relaxations of ethylene ionomers［J］.Macromolecules,1992,25: 368-376.
【11】
WANG Shih-wa, LIU Wen-juan, COLBY R H. Counterion dynamics in polyurethane- carboxylate ionomers with ionic liquid counterions［J］.Chemistry of Materials,2011,23: 1862-1873.
【12】
YU X, GRADY B P, REINER R S, et al. Properties of polyamic acid ionomers［J］.Journal of Applied Polymer Science,1993,47(9): 1673-1683.
【13】
罗宁,王得宁,应圣康.聚氨酯红外光谱氢键化谱带的归属与定量分析［J］.合成橡胶工业,1995,18(4): 200-203.
【14】
CHEN Kuo-yun, KUO Jen-feng, CHEN Chu-yung. Synthesis, characterization and platelet adhesion studies of novel ion-containing aliphatic polyurethanes［J］.Biomaterials, 2000,21: 161-171.
【15】
BURUIANA T, BURUIANA E C. Poly(etherurethane) anionomers with azobenzene carboxylate groups: synthesis and properties［J］.Journal of Applied Polymer Science,2005,96: 577-582.
【16】
ZHANG Jie, HU Chun-pu. Synthesis, characterization and mechanical properties of polyester-based aliphatic polyurethane elastomers containing hyperbranched polyester segments［J］.European Polymer Journal,2008,44: 3708-3714.
【17】
WEI Xin, YU Xue-hai. Synthesis and properties of sulfonated polyurethane ionomers with anions in the polyether soft segments［J］.Journal of Polymer Science Part B: Polymer Physics,1997,35: 225-232.
【18】
SU Teng, WANG Gui-you, WANG Shao-lei,et al. Fluorinated siloxane-containing waterborne polyurethaneureas with excellent hemocompatibility, waterproof and mechanical properties［J］.European Polymer Journal,2010,46: 472-483.
【19】
LU Xin-ya, STECKLE W P, WEISS R A. Ionic aggregation in a block copolymer ionomer［J］.Macromolecules,1993,26: 5876-5884.
