种子聚合

苯乙烯微乳液种子聚合

Microemulsion Seeded Polymerization of Styrene

确定了种子聚合过程中乳化剂补加量与聚合单体量之间的定量关系和合理的单体加料速率。

The quantitative relationship between the emulsifier supplement and the polymerized monomer and proper monomer feeding rate were determined during seeded polymerization .

结果表明，以种子聚合法得到的SiO2球为模板，可实现对多孔碳材料孔径的连续可调，且该材料具有较高比表面积，较大的孔体积。

As a result , when the monodisperse silica particles were used as template , carbon materials with continuous tunable pore size , high BET surface area and pore volume could be achieved .

较佳的聚合工艺为：种子聚合温度80℃，预乳化液滴加时间15h；壳层聚合温度75～80℃，滴加时间5h。

The preferred polymerization conditions were that seed polymer temperature 80 ℃, pre-emulsion distribution droplets time 1.5 h , shell polymerization temperature 75 ~ 80 ℃, distribution droplets time 5 h.

采用半连续乳液种子聚合法合成苯乙烯（St）、丙烯酸丁酯（BA）、甲基丙烯酸（MAA）、丙烯酸（AA）、醋酸乙烯酯（VAc）的复合乳液。

By semicontinuous seed latex polymerization , a kind of butyl acrylate ( BA ) / styrene ( St ) / methyl acrylic acid ( MAA ) / acrylic acid ( AA ) / vinyl acetate ( VAc ) composite latex is synthesized .

第二步种子聚合条件：乳化剂用量／种子胶乳量不大于10.2%，种子胶乳量／单体用量小于5.0%，聚合温度60～70℃，聚合时间3～5h。

The conditions in the second step of seed polymerization were : emulsifier / seed latex less than l0.2 % , seed latex / monomer less than 5 % , polymerization temperature 60 ~ 70 ℃, and polymerization time 3 ~ 5h .

本文还初步研究了在种子聚合过程中乳胶粒径的变化，表明加料速率加快、单体中DMAEMA含量增大都使乳胶粒聚并现象明显，粒径增大。

The growth of particles was studied primarily in the seeded copolymerization , the results show that increase of the feed rate of monomers and increase of content of DMAEMA can promote coagulation , obtaining large particles .

种子聚合制备表面磺酸基功能化聚苯乙烯微球

Synthesis of Sulfonic Groups Functionalized Monodisperse Polystyrene Microspheres via Seeded Polymerization

在无皂乳液聚合的基础上，进一步进行了种子聚合，得到了感温膨胀性好的核壳结构的复合凝胶微球。

On the base of soap-free emulsion , core-shell microspheres prepared by means of seed polymerization are thermo-sensitive .

种子聚合所得的乳液具有粒径分布窄、性能重复性好等特点。

The emulsion prepared by seeding polymerization technology is featured by its narrow particle size distribution and constant performance .

本文利用正交设计法对固体石蜡/甲基丙烯酸甲酯复合乳液的制备工艺条件进行了研究，采用预乳化和种子聚合工艺成功制备出固体石蜡/甲基丙烯酸甲酯复合乳液木材防水剂。

In this paper , the preparing conditions of the solid paraffin-methacrylate composite latex were studied by using the orthogonal design method .

综述了单分散聚合物微球的制备方法和研究进展，具体介绍了分散聚合和种子聚合。

Polymerization methods and the application researches of monodisperse polymer microspheres are summarized and dispersion polymerization and seeded polymerization are discussed in detail .

本论文首先研究比较了各种乳液聚合工艺，并结合含氟乳液的合成特点，着重研究讨论了单体饥饿态半连续种子聚合的基本反应机理。

Firstly , all kinds of polymer technology are compared and the basic reaction mechanism of monomer starving semi-continuous seed polymerization is mainly discussed in this article .

采用预乳化种子聚合工艺，在多元丙烯酸酯中添加自交联功能单体N-羟甲基丙烯酰胺和反应型乳化剂2-丙烯酰胺基-2-甲基-丙基磺酸铵盐，研制出性能优异的耐热耐水型乳液压敏胶。

A kind of emulsion pressure sensitive adhesive with good heat and water resistance was prepared by using pre-emulsification seed polymerization and adding self-crosslinking monomer NMA and reactive emulsifying agent AMPS in acrylate .

以过硫酸铵为引发剂，十二烷基硫酸钠为乳化剂，采用种子聚合工艺，合成了偏氯乙烯质量分数为23%～43%的羧基偏氯乙烯丁苯胶乳。

Carboxylated latex of vinylidene chloride ( VCD ) - butadiene-styrene with 23 % ~ 43 % ( mass ) of VDC was prepared using seed polymerization process in the presence of initiator ammonium persulfate and emulsifier lauryl sodium sulfate .

自稳定沉淀聚合是最近几年发现的制备单分散聚合物微球的方法，与传统的乳液聚合、分散聚合和种子聚合等方法相比较，具有十分明显的优势，因此拥有广阔的应用前景。

Recently , self-stable precipitation polymerization was found to synthesise monodisperse microspheres . Compared to traditional processes of polymerization , such as emulsion polymerization , dispersion polymerization and seeding polymerization , it was provided with extraordinarily obvious superiorities , and could be applied widely .

种子乳液聚合制备可发气P（St/BVA）-PSt核壳微球

Preparation of foamable P ( St / BVA ) - PSt core-shell microparticles by seeding emulsion polymerization

RAFT种子乳液聚合反应初期的MonteCarlo模拟

Monte Carlo Simulations for the Very Beginning of RAFT Seeded Emulsion Polymerization

AC对St或MMA为壳层单体种子乳液聚合的影响

Effect of AC on seeding emulsion polymerization using St or MMA as shell monomer

用种子乳液聚合法合成的ASA复合胶乳粒子的形态

Morphology of ASA Composite Latex Particles Synthesized by Seeded Emulsion Polymerization

本研究采用EVA乳液作为种子进行聚合制备改性聚醋酸乙烯乳液粘合剂。

The modified PVAC emulsion adhesive is prepared by polymerizing EVA emulsion which acts as core .

种子乳液聚合法制备纳米SiO2/苯丙复合乳液

Preparation of nano-SiO_2 / styrene-acrylic emulsion by seed emulsion polymerization

成功地使用了种子乳液聚合方法制备出粒径为300nm左右的苯乙烯（Styrene）/丙烯酸（acrylicacid）共聚小球。

Copolymer nanospheres of styrene / acrylic acid were prepared successfully by seeded emulsion polymerization .

烷基硫酸钠对MMA种子乳液聚合的影响

Study on the Effect of Sodium Alkyl Sulfate on Seed Emulsion Polymerization of MMA

采用适时补皂、种子乳液聚合方法合成粒径大、分布窄的SBR胶乳。

The SBR latex with large particle diameter and narrow distribution were synthesized by reinforcing additional emulsifier and seeding emulsion co-polymerization .

采用种子乳液聚合技术，以K2S2O8为引发剂合成了一系列PBgSAN接枝共聚物。

A series of PB g SAN copolymers were synthesized by seed emulsion polymerization using K 2S 2O 8 as the initiator .

采用种子乳液聚合手段，合成了具有核壳结构的抗冲击改性剂ACR。

A kind of impact modifier ACR with core - shell structure was synthesized by emulsion polymerization .

本文以种子乳液聚合的方法合成了聚硅氧烷接枝聚丙烯酸酯微乳液，用红外光谱（IR）进行结构表征，用电子显微镜（TEM）测定乳液的粒径。

Graft copolymer micro-emulsion of polyacrylate and polysiloxane had been prepared through seeded emulsion polymerization , its structure was characterized by IR . The particle size was determined through TEM photographing .

采用种子乳液聚合法制备出了聚丙烯酸丁酯/聚甲基丙烯酸甲酯（PBA/PMMA）核壳型聚合物粒子，并对其表观形貌及结构进行了SEM和FTIR分析。

Polybutylacrylate / polymethylmethacrylate ( PBA / PMMA ) core-shell polymer particles are prepared through seed emulsion polymerization . SEM and FTIR analyses are also conducted to their appearance and structure .

采用种子乳液聚合法进行PBA胶乳粒径放大方法简便、效果明显。

The results showed that this method was a good way for preparing PBA latex with large particle size .