covariance

精品项目网 2024-05-18 17:43:10

基本释义:

共分散

网络释义

1)covariance,共分散

2)dispersion copolymerization,分散共聚

3)dispersion copolymerization,分散共聚合

4)resonance type dispersion,共振型分散

5)resonance light dispersing analysis,共振光散射分析

6)resonance scattering integral,共振散射积分

用法和例句

The pH-responsive crosslinking poly(ethylene glycol)-co-poly(acrylic acid)(PEG-co-PAAc) microspheres were prepared by dispersion copolymerization of St-PEG macromonomer with acrylic acid in 3-pentanone in the present of N,N'-methylenebisacrylamide(Bis) as crosslinker and 2,2'-Azobis(isobutyronitrile)(AIBN) as initiator.

在N,N′-亚甲基二丙烯酰胺(Bis)存在的条件下,以偶氮二异丁腈(AIBN)为引发剂,使苯乙烯单封端聚乙二醇(St-PEG)大分子单体与丙烯酸(AAc)在3-戊酮溶液中进行分散共聚反应,得到了聚乙二醇-co-聚丙烯酸(PEG-co-PAAc)交联微球。

The novel spherical particles were prepared by dispersion copolymerization of AN with St in the presence of MA-PEG macromonomer in ethanol/water mixed solvents(vol/vol=4/1) at 60℃ for 24h by using 2,2′-azobisisobutyrnitrile(AIBN) as a free radical initiator.

以甲基丙烯酸单封端的聚乙二醇(MA PEG)大分子单体为反应性分散稳定剂,偶氮二异丁腈(AIBN)为自由基引发剂,在醇/水混合介质中与丙烯腈和苯乙烯(丙烯腈为主单体)进行三元分散共聚,制备得到了亚微米级,粒径均一,分散稳定,具有特殊形态的聚合物颗粒。

Then PNIPAAm grafted poly (acrylonitrile/styrene) (PNIPAAm-g-PAN/PSt) particles in nanometer can be prepared by one-step method based on the dispersion copolymerization of PNIPAAm macromonomer with AN/St in ethanol/water mixed solvents.

以此为反应性分散稳定剂,在与丙烯腈/苯乙烯进行的三元分散共聚合中,一步合成了PN IPAAm接枝聚丙烯腈/聚苯乙烯聚合物微球。

Preparation of Monodisperse Copolymers Microspheres by Self-stable Precipitation Polymerization;

自稳定沉淀聚合制备单分散共聚物微球的研究

Study on Tetrafluoroethylene/Perfluoro Propyl Vinyl Ether Dispersion Copolymerization and Relationship of Copolymers' Structure and Properties;

四氟乙烯/全氟丙基乙烯基醚分散共聚和共聚树脂结构/性能关系研究

Synthesis and Dispersive Properties of the Acrylic Acid-based Copolymer Dispersant

丙烯酸类共聚物分散剂的合成及其分散性能

Determinationd for pH of aqueous dispersions of polymers and copolymers

GB/T8325-1987聚合物和共聚物水分散体pH值测定方法

Synthesis of EPDM-g-SAN by Graft Copolymerization by Dispersion Polymerization;

分散聚合制备EPDM-g-SAN接枝共聚反应的研究

Synthesis and Properties of Aqueous Polysiloxane-block-polyurethane Copolymer;

水分散有机硅—聚氨酯嵌段共聚物合成与性能

Synthesis and Properties of Aqueous Polysiloxane-Polyurethane Block Copolymer

水分散有机硅-聚氨酯嵌段共聚物的合成与性能

ACTION MECHANISM AND EFFECT OF SIDE CHAIN LENGTH OF COMB-LIKE COPOLYMER DISPERSANT ON DISPERSION OF CEMENT PASTE

梳形共聚物分散剂侧链长度对水泥浆体分散性能的影响及机理

Study on synthesis of the acrylic acid-BASED copolymer dispersant and its dispersive property of TiO_2 granule

丙烯酸类共聚物分散剂的合成及其对二氧化钛的分散性能

Acrylic Acid Copolymer of Seawater Scale Inhibitor, the Preparation Thereof and the Performance Thereof;

丙烯酸共聚物海水阻垢分散剂合成与性能研究

Studies of Aqueous Dispersion of Anionic Polyacrylamide;

水分散型阴离子丙烯酰胺共聚物的研究

Monte Carlo Simulation of the Effect of Polydispersity on the Self-assembly Behavior of Block Copolymers;

多分散性嵌段共聚物自组装行为的Monte Carlo模拟

Properties of Waterborne Polyurethane Blended with hydroxy-terminated silicone emulsion;

水性聚氨酯-有机硅共混水分散体系的性能

Synthesis of copolymer AA/AHPSE and its corrosion and scale inhibition capacities

AA/AHPSE共聚物的合成及其阻垢分散性能研究

Preparation of VE Acetate-loaded Amphiphilic Block Copolymer Nano-dispersions

V_E醋酸酯两亲性嵌段共聚物纳米分散液的制备

Study of Phase Separation Behavior of Polymer Blends and Heterogeneous Polymerization of Polymer Hydrogels by Optical Methods;

PMMA/SAN共混物相分离及聚合物水凝胶非均匀聚合的光散射/折射研究

Synthesis and Properties of Waterborne Silicone-polysiloxaneurethane Copolymers

水分散有机硅—聚氨酯嵌段共聚物的制备与性能研究

Ternary dispersion copolymerization research of AM and cationic monomers in salt solution media

盐水介质中AM与阳离子单体三元共聚的分散聚合研究

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