number-average molecular weight是什么意思

用法例句

The viscosity of prepolymer, together with number average molecular weight, equilibrium swelling ratio Q and UV cured mechanical properties were measured, and, the relations between chain structure and microphase separation were studied.

通过对一系列具有不同分子结构的丙烯酸聚氨酯光敏预聚体的粘度、数均分子量、自动氧化反应以及光固化后树脂的平衡溶胀比和力学性能的测定 ,探讨了这类丙烯酸聚氨酯光敏树脂的链结构与微相分离、光固化性能以及力学性能间的关系 。

The DNS and HPGPC methods were used to determine the number average molecular weight(M_n) of Oligoguluronic acid in this study.

分别采用3,5-二硝基水杨酸(DNS)比色法和高效凝胶渗透色谱法(HPGPC)测定了低聚古罗糖醛酸的数均分子量。

The intrinsic viscosity was measured by Ubbelohde Viscometer and the number-average molecular weight was determined by Vapor Permeation Osmeter (VPO).

通过测定含侧氨基聚二甲基硅氧烷聚合物的数均分子量和特性粘数,对MHS方程中的常数K和α进行了订正,得到的MHS方程表述为:[η]=3。

In this paper,the conditions and effecting factors in determination of the number-average molecular weight for EO-THF copolyethers were studied and discussed.

本文对气相渗透法（ＶａｐｏｒＰｒｅｓｓｕｒｅＯｓｍｏｍｅｔｒｙ，简称ＶＰＯ）测定环氧乙烷（ＥＯ）－四氢呋喃（ＴＨＦ）共聚醚的数均分子量的测试条件和影响因素进行了研究和讨论。

The molecular weight of UP-VP, degree of cross - linking, network molecular weight (Mc), and the swell ratio of a number of.

%磷酸二氢钠(NaH2PO4)溶液引发NVP聚合交联的方法,制备由超高分子量聚乙烯基吡咯烷酮(UPVP)和部分交联的PVP((CPVP)组成的水溶胶,测定PVP水溶胶中未交联的PVP分子量、交联部分的交联度、数均网络分子量和溶胀比,结果表明,PVP的分子量约为通用PVPK90的10倍;随着反应体系中NVP浓度和辐照剂量的增加,交联度变大,数均网络分子量变小;溶胀比与单体浓度成正比,与辐照剂量成反比。

Test methods of PTFE number average mol weight, standard density method and differential scanning calorimeter method are introduced.

介绍了聚四氟乙烯树脂相对数均分子质量的测试方法——标准密度法和差示扫描量热法,叙述了不同类型、品级和类别的树脂的测试技术条件和试样制备方法,说明了树脂的广义相对密度和热不稳定指数及其相对数均分子质量之间的关系和差异。

The viscosity-average molecular weight of PASP,scale inhibitio.

用极限黏度法测定合成聚天冬氨酸的粘均分子量,用静态阻垢法评价聚天冬氨酸的性能,用摇床法检验聚天冬氨酸的生物降解性。

The effect ofγ-irradiation dose(range from 0 to 25kGy) on the viscosity-average molecular weight((?)),mechanical properties,thermal performance,and the chemical structure of poly (L-lactic acid)(PLLA) under air atmosphere was investigated.

考察了辐射剂量(D)在0～25kGy范围和空气气氛下,γ-辐照对L型聚乳酸(PLLA)的粘均分子量((?)_η)、力学性能、热稳定性和化学结构的影响。

Use viscometry to determine viscosity-average molecular weight of oxidated polyethylene wax and introduce the measurement,process and effect factors in detail.

用粘度法测定氧化聚乙烯蜡的粘均分子量。

The change of viscosity and average molecular weight of heavy oil from Liaohe oilfield with temperature and reaction time are investigated in the paper.

探讨了在注蒸气条件下,稠油的粘度和平均分子量随蒸气温度、反应时间的变化规律,研究了金属盐、油层矿物对稠油水热裂解反应的影响。

The refractive index, density, average molecular weight, elemental composition and 1H-NMR spectra of five coker gatches were determined.

测定了大庆、胜利、辽河、管输等5种焦化蜡油的密度、平均分子量、折光指数、元素和1H－NMR核磁共振波谱等数据，研究了5种焦化蜡油的化学组成，包括饱和烃、轻芳烃、中芳烃、重芳烃和胶质5个组分的含量，并与直馏蜡油的数据进行了对比；采用改进的B－L法、n－d－M法和密度法计算了平均结构参数。

GPC analysis revealed that the average molecular weight and molecular radius of β-glucan were 9.

30%,由此可用高效凝胶色谱测定其分子量,得到其平均分子量为9。

Relational Expression of Average Molecular Weight of Alkyd Resin with Degree of Reaction

醇酸树脂数均分子量与反应程度的关系

Determination of number average molecular mass of chitosan-oligosaccharide by acetylacetone method

乙酰丙酮法测定甲壳胺寡糖数均分子量

Determination of number-average molecular weight of polystyrene standards by vapor pressure osmometry

GB/T6597-1986蒸气压渗透法测定聚苯乙烯标准样品的数均分子量

Determination of number-average molecular weight of polystyrene standards by membrane osmometry

GB/T6596-1986膜渗透压法测定聚苯乙烯标准样品的数均分子量

Two Calculations of Average Energy of Rigid Double-Atom Molecule;

刚性双原子分子平均能量的两种求法

The Mean Number of Phonons of Weak-coupling Polaron in Quantum Disk

盘型量子点中弱耦合极化子的声子平均数

A quantum number, either+1(even) or-1(odd), that mathematically describes this property.

量子数的均衡从数学含义来描述对称性的量子数＋1(偶)或－1(奇)

Regulating Molecular Weight of Homopolymer of DMDAAC by Chain-transfer Agent

链转移剂调控DMDAAC均聚物分子量

A quantum number equal to twice the average electric charge of a particle multiplet or, equivalently, to the sum of the strangeness and the baryon number.

超荷一个量子量，等于一个粒子多重线谱的平均电极；或者相当于量子数和重子的数量的总和

Influence of Interaction Between Phonons on Mean Number of Polaron Phonons in Weak-coupling Quantum Dot

声子之间相互作用对弱耦合量子点中极化子内声子平均数的影响

Exact wave function of the coupled harmonic oscillator with time-dependent mass and frequency

质量和频率均含时的耦合谐振子的严格波函数

Annual rainfall is the determining environmental factor on Chinese Chiroptera species density distribution,and annual average temperature also has relatively significant affect.

影响翼手目种数密度分布的决定环境因子是年降雨量,但年平均气温也有明显作用。

Asymptotic distribution and application of estimation of the location parameter on uniform distribution

均匀分布位置参数的估计量的渐近分布及应用

even amounts of butter and sugar; on even terms; it was a fifty-fifty (or even) split; had a fifty-fifty (or even) chance; an even fight.

黄油和糖的数量对等；不相上下；平分；机会均等；势均力敌的战斗。

Average Number of Optical Phonons of Strong-coupling Bound Polaron in a Parabolic Quantum Dot

抛物量子点中强耦合束缚极化子的光学声子平均数

Temperature properties of mean number of phonons for magnetopolaron in an asymmetric quantum dot

非对称量子点中磁极化子声子平均数的温度特性

The antigens were found to be homogenious and have a molecular weight of 87000 dalton asdetermined by gel-electrophoresis method.

电泳分析得全抗原分子量平均为87000道尔顿。

Study on average molecular weights of the distillated fractions from different coal-derived oils

煤液化生成油窄馏分平均分子量的研究