The molecule structures were characterized by fourier transform infrared ( FTIR ) nuclear magnetic resonance ( 1H-NMR ) and intrinsic viscosity were measured by ubbelohde viscometer .

利用傅立叶变换红外（FTIR）、质子核磁共振（1HNMR）进行结构表征， 乌氏 粘度计测其粘度。

Ubbelohde viscometer was used to determine the intrinsic viscosity of the polymer . Through the intrinsic viscosity to compare the molecular of the polymer study the effect of the polymerization condition to the the molecular of polymer .

用 乌氏 粘度计测定了 四 种聚合物的特性粘度，通过特性粘度 大小比较聚合物分子 量 大小，研究了聚合条件对聚合物分子 量 大小的影响。

Of work viscometer : Ubbelohde viscometer ( diluted ) in line with the GB / T1632-93 standard .

工作粘度计： 乌氏 粘度计（稀释型），符合GB/T1632-93标准要求。

The melting point of three block copolymers was measured with microscope as 232 248 and 260 ℃ respectively . The intrinsic viscosity of the block copolymer with soft-and-hard segment ratio of 7 / 3 was measured as 1.12 dL / g with a Ubbelohde viscometer .

利用显微熔点仪、 乌 式 粘度计测定了共聚物的熔点和 特性 粘 数，3种共聚物熔点分别为232248260℃，软／硬段比例为7／3的共聚物的 特性 粘 数为 1.12dL／g。