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- PurposeTo investigate the effects of various factors on the intrinsic viscosity of N-succinyl-chitosan. 目的探讨不同因素对N-琥珀酰壳聚糖特性黏度的影响。
- In this paper the PBT/PET blended fiber is studied and its intrinsic viscosity, crystallinity are discussed. 研究了PBT／PET共混纤维，就其特性粘度、结晶能力作了进一步测试讨论。
- Furthermore, the effect of BOZ on enhancing the intrinsic viscosity of PET/PEN blend system was studied for the first time. 首次以BOZ对PET/PEN的共混体系作了扩链增粘的研究。
- The results show that under microwave irradiation, the intrinsic viscosity and the conversion of the polycondensate are raised. 结果表明，微波辐射能提高缩聚物的特性粘数和转化率。
- Results show that reaction velocity, intrinsic viscosity of PET, carbonyl content and meltingpoint increase with the amount of catalyst. 研究结果表明，随着催化剂用量增加，反应速度提高，PET的特性粘度、羧基含量和熔点均有所提高。
- Purity, content of propionaldehyde and colourity in PDO are main factors to yellowish and intrinsic viscosity of PTT resin. 1,3-PDO的纯度、丙醛含量和加热色度对PTT质量影响较大。
- Increase in reaction temperature results in increase in intrinsic viscosity of PET decrease in carbonyl content and narrowing of molecularwe... 提高反应温度则使PET的特性粘度提高，羧基含量减少，分子量分布变窄，从而改善厂PET的内在质量。
- Introduce the general procedure and standard of viscosity measurement,the method of obtaining the intrinsic viscosity of macromolecular solution. 介绍粘度测量的一般思路,列举出测量粘度的标准名称,简要叙述了高分子溶液特性粘数的获得方法。
- A series of poly (amide-sulfone) with different intrinsic viscosity were synthesized via 4,4'-DDS, 3,3'-DDS and TPC at low temperature. 摘要以4,4'-二氨基二苯基砜(4,4'-DDS),3,3'-二氨基二苯基砜(3,3'-DDS)，对苯二甲酰氯(TPC)为单体，通过低温溶液缩聚反应合成了一系列聚芳砜酰胺三元共聚物。
- Intrinsic viscosity of sodium hyaluronate was determined by one point method and multi-point dilutionmethod, respectively. 分别用一点法和多点稀释法测定透明质酸钠的特性黏度,并对测定结果进行比较。
- Therefore,the corresponding safe concentration(SC)of DM and PDM with low,moderate and high intrinsic viscosity values in water were respectively 140,0.37,0.36 and 0.32 mg/L. 并由此计算得到DM、低特征黏度PDM、中特征黏度PDM及高特征黏度PDM的安全使用浓度分别为140、0.;37、0
- The effect of montmorillonite nano-meter particle on the thermostability, mechanical properties and intrinsic viscosity number of the in-meter composite was studied. 研究了蒙脱土纳米粒子对复合材料热稳定性、力学性能和特性粘数的影响。
- Objective:Intrinsic viscosity of Sodium Hyaluronate was measured by Ubbelohde viscometer and calculated using JP,ChP and EP methods for intrinsic viscosity. 目的:采用日本药典、欧洲药典及中国药典方法对玻璃酸钠注射液进行特性粘数的测定并计算。
- The effects of the mole ratio of anhydride to amino group of chitosan in the feed solution on the solubility, intrinsic viscosity and molecule weight of the product were studied. 研究了投料物质的量比对产物的溶解性、特性黏度和相对分子质量的影响。
- The intrinsic viscosity of PEN chip subjected to solid state polymerization increased from 0 5 dL/g in the stage of melt polymerization to more than 0 7 dL/g. 通过固相聚合后 ;PEN切片的特性粘数可由熔融聚合的 0 .;5 d L/g提高到 0
- FTIR and NMR analysis were used to characterize the polymer structures, the intrinsic viscosity and the percent of hydrophilic moieties were also studied. 用FTIR、NMR对结构进行了表征，并测定了特性粘数与阳离子单体含量。
- The effects of the solid content,soft/hard segment levels and chain extenders on material's intrinsic viscosity,elasticity,hardness and mechanic property have been observed. 还考察了聚氨酯中软段和硬段相对含量的变化对力学性能的影响。
- The key factors affecting the polymer intrinsic viscosity were found to be monomer recrystallization times,stannous octoate concentration and polymerization time. 单体重结晶次数、辛酸亚锡浓度、聚合时间等条件均是影响聚合物特性粘数的重要因素。
- The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly(trimethylene terephthalate)(PTT), PET and CDP. 研究了聚对苯二甲酸丙二醇酯(PTT),PET,CDP在不同温度和时间下的特性粘数和端羧基含量的变化。
- The intrinsic viscosities reported were detemined in benzene at 25℃. 特性粘数是在苯中于25℃测定的。
