molecular weight造句怎麼寫

With many polymers the molecular weight of the structural unit is equal to the molecular weight of the monomer, e.g. with all vinyl monomers.

Low molecular weight heparin calcium treat the abortions caused by anticardiolipin antibodies

Development of special ultra-high molecular weight polyethylene fiber-grade material

All kinds of relative molecular weight PGA was prepared by controlling the different hydrolyzation time.

Preparations of higher molecular weight seemed to cause more systemic reactions than those of lower weight and also precipitated more antibodies in sensitive subjects.

Syntheses of low - molecular weight polyacrylic acid sodium with water as solvent and APS - SHS as REDOX initiator are studied.

Some important characteristics of polymers include their size (or molecular weight), softening and melting points, crystallinity, and structure.

With the main group elements, along with the increase of cycle number, molecular weight increasing, increasing the radius of the metal is more and more strong.

Method: Though enzymatic hydrolysis in vitro, the molecular weight of CMC was measured by the method of viscosity measurement under the effect of lysozyme.

The APIs produced by biotechnological processes normally consist of high molecular weight substances, such as proteins and polypeptides, for which specific guidance is given in this Section.

The goal of this study is to elucidate whether the size or molecular weight is a key factor to which a protein assembly into a fibrillar structure with cytotoxicity.

If the low molecular weight units making up the macromolecule are bonded end-to-end in a long chain and no covalent chemical bonds exist between the chains, the macromolecules are called linear polymers.

"It is calculated in practice by summing the atomic weights of the atoms making up the substance's molecular formula. The molecular weight of a hydrogen molecule (chemical formula H2) is 2 (after rounding off); for many complex organic molecules (e.g., proteins, polymers) it may be in the millions."

In most cases, the molecular weights rise to a finite value with time or conversion.

Many plant-borne protease inhibitors are small proteins with molecular weights under 20,000 daltons.

For years, scientists have been able to analyze the ingredients of a pill or capsule using mass spectrometers, which identify chemicals by measuring molecular weights.

A plasma globulin of high molecular weight.

high molecular weight high density polyethylene

Synthesis of molecular weight controllable polylactide by using organocatalyst

The fraction with smaller molecular weight, molecular weight distribution and lower content of short chain branching could form thinner and more uniform laminar crystals.

The molecular weight of the polymers obtained increased with decrease in catalytic activity.

The packing possesses large specific pore volume, high column efficiency, wide separation range of molecular weight and long life time.

Unlike other HA cosmetics, Skin Eternal Hyaluronic Serum contains low molecular weight HA, which is more easily absorbed.

It exists in a high molecular weight form, approximately 180,000 daltons, and as such seems to be associated with a lipoprotein.

The use results show that the molecular weight regulators added in the spinning can improve the spinning performances of PP, the filament fineness and the hand of the spunbonded nonwovens;

This rope is made by the ultra-high molecular weight polyethylene fiber, It's woven by separate six "s" and "Z" stands, Let the rope will not occur rotating, Its characteristic is strong.

With the increase of the molecular weights and the addition amount of PEG, the average crystal size decreased.

Well, that's the molecular weight of it.

The values of melting point, refractive index, bromine content, molecular weight, molecular constitution and fineness of product are also given.

The term macromolecule, or polymer, is applied to substances of high molecular weight that are composed of a large number (usually at least 100) of units of low molecular weight joined by covalent bonds.

Various fractions of tannins with different polarities and relatively narrow molecular weight distribution were obtained by extractions using ether and ethyl acetate sequently .

Based on research it indicated that salt sensitivity strengthened with the increase of the ratio of electronic charge to quality except for extra large and small molecular weight of dye.

low molecular weight polymer

Antimicrobial peptides have small molecular weight, high heat stability and a wide antimicrobial spectrum.

So if you just weigh the whole crystal, and then you measure the heat capacity, you know how many moles there are, and now you know the weight, you can figure out the molecular weight.

Determining molecular weight distribution and relative molecular weight of resins by gel permeation chromatography

The results show that their content reaches about 90% and average molecular weights are 300~600.

It was also found that the molecular weight and the dissolubility of polyacrylamide decreased with the increase of dehydration time.