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- PurposeTo investigate the effects of various factors on the intrinsic viscosity of N-succinyl-chitosan. 目的探討不同因素對N-琥珀酰殼聚糖特性黏度的影響。
- In this paper the PBT/PET blended fiber is studied and its intrinsic viscosity, crystallinity are discussed. 研究了PBT／PET共混纖維，就其特性粘度、結晶能力作了進(jìn)一步測試討論。
- 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對PET/PEN的共混體系作了擴鏈增粘的研究。
- The results show that under microwave irradiation, the intrinsic viscosity and the conversion of the polycondensate are raised. 結果表明，微波輻射能提高縮聚物的特性粘數和轉化率。
- Results show that reaction velocity, intrinsic viscosity of PET, carbonyl content and meltingpoint increase with the amount of catalyst. 研究結果表明，隨著(zhù)催化劑用量增加，反應速度提高，PET的特性粘度、羧基含量和熔點(diǎn)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的純度、丙醛含量和加熱色度對PTT質(zhì)量影響較大。
- Abstract: The concept of easement （servitutes praediorum） has always maintained a specific intrinsic prescriptive identity from Roman law to some important modern civil codes. 文章摘要: 自羅馬法到近現代一些重要的民法典，地役權概念始終保持了明確的內在規定性。
- Increase in reaction temperature results in increase in intrinsic viscosity of PET decrease in carbonyl content and narrowing of molecularwe... 提高反應溫度則使PET的特性粘度提高，羧基含量減少，分子量分布變窄，從而改善廠(chǎng)PET的內在質(zhì)量。
- Introduce the general procedure and standard of viscosity measurement,the method of obtaining the intrinsic viscosity of macromolecular solution. 介紹粘度測量的一般思路,列舉出測量粘度的標準名稱(chēng),簡(jiǎn)要敘述了高分子溶液特性粘數的獲得方法。
- 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)，對苯二甲酰氯(TPC)為單體，通過(guò)低溫溶液縮聚反應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. 分別用一點(diǎn)法和多點(diǎn)稀釋法測定透明質(zhì)酸鈉的特性黏度,并對測定結果進(jìn)行比較。
- 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. 并由此計算得到DM、低特征黏度PDM、中特征黏度PDM及高特征黏度PDM的安全使用濃度分別為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. 研究了蒙脫土納米粒子對復合材料熱穩定性、力學(xué)性能和特性粘數的影響。
- Objective:Intrinsic viscosity of Sodium Hyaluronate was measured by Ubbelohde viscometer and calculated using JP,ChP and EP methods for intrinsic viscosity. 目的:采用日本藥典、歐洲藥典及中國藥典方法對玻璃酸鈉注射液進(jìn)行特性粘數的測定并計算。
- 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. 研究了投料物質(zhì)的量比對產(chǎn)物的溶解性、特性黏度和相對分子質(zhì)量的影響。
- 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. 通過(guò)固相聚合后 ;PEN切片的特性粘數可由熔融聚合的 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對結構進(jìn)行了表征，并測定了特性粘數與陽(yáng)離子單體含量。
- 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. 還考察了聚氨酯中軟段和硬段相對含量的變化對力學(xué)性能的影響。
- The key factors affecting the polymer intrinsic viscosity were found to be monomer recrystallization times,stannous octoate concentration and polymerization time. 單體重結晶次數、辛酸亞錫濃度、聚合時(shí)間等條件均是影響聚合物特性粘數的重要因素。
- The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly(trimethylene terephthalate)(PTT), PET and CDP. 研究了聚對苯二甲酸丙二醇酯(PTT),PET,CDP在不同溫度和時(shí)間下的特性粘數和端羧基含量的變化。
