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作 者:王明慧[1] 李通德[1] 宫园园[1] 徐玲燕[1]
机构地区:[1]青岛科技大学化学与分子工程学院,山东青岛266042
出 处:《高分子材料科学与工程》2009年第7期38-40,44,共4页Polymer Materials Science & Engineering
基 金:山东省科技攻关计划(2006sk-18);青岛科技大学博士基金(0022266)
摘 要:将聚对羟甲基苯乙烯用异佛尔酮二异氰酸酯(IPDI)交联,制备了一种具有网状结构的聚苯乙烯聚氨酯,并用核磁共振法(1H-NMR),红外分析法(FT-IR)对其结构作了表征。用差示扫描量热法(DSC),热失重法(TGA/DTG)测定了其热分解性质,发现聚合物具有良好的热稳定性,增大IPDI的含量,聚合物的热分解温度提高。DSC和扫描电镜(SEM)测试表明,增大IPDI的含量也使聚合物微相分离程度提高。对聚合物进行紫外光照射和微生物催化水解,发现聚合物具有光降解和生物降解性。Poly(p-hydromethylstyrene) was crosslinked by isophorone diisocyanate(IPDI) as erosslinker to prepare a novel network poly (styrene-urethanes) and the crosslinkablepolymers were characterized by hydrogen nuclear magnetic resonance spectrum (^1H-NMR), Fourier transform infrared spectroscopic (FT-IR). The differential scanning calorimetry(DSC), thermogravimetry(TGA/DTG) analytic results show that the poly(styrene-urethanes) have good thermal stability, moreover the thermal decomposition temperature of the poly (styrene-urethanes) increases with increasing IPD1 content. It has been shown from DSC and scanning electron microscope (SEM) measurements that the extent of microphase separation in the poly(styrene-urethanes) increases with increasing IPDI content. The ultraviolet(UV) light irradiation and hydrolysis catalyzed by microorganism tests reveal that the poly (styrene-urethanes) have photodegradability and biodegradability.
关 键 词:聚氨酯 聚对羟甲基苯乙烯 异佛尔酮二异氰酸酯 降解性
分 类 号:TQ323.8[化学工程—合成树脂塑料工业]
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