丙烯酸的

Dithioester and trithiocarbonate RAFT reagents were synthesizedby different methods, and were used for the polymerization of styrene ormethacrylates, by thermal, thermo-initiator and photo-initiation.

针对这一问题，本文尝试用三种方法合成了结构不同的RAFT试剂，考察了热引发、引发剂引发以及紫外光引发条件下，二硫酯／三硫酯调控的常见单体苯乙烯以及丙烯酸酯的RAFT聚合。

A three-unite hydrogel that had a thermoresponsive shape memory was prepared by copolymerizing a hydrophobic monomer n-stearyl acrylate with n- undecylenic acid and acrylamide,and its structure and properties were studied by X-ray diffraction,DSC and DMA.

选用疏水性单体丙烯酸十八酯和十一烯酸以及亲水性单体丙烯酰胺制备了三元共聚凝胶P(SA-co-AM-co-HA)，通过X射线衍射、DSC、DMA等对三元凝胶的结构和性能进行了研究，发现三元凝胶形成了有序排列，这种有序排列会随着温度的变化发生可逆转变，从而使凝胶显示较好的形状记忆特性。

The reactivity of dodecylamine, GMA and 2-ethyl-2-oxazoline reacting with grafted ABS is: GMA-ethyl-2-oxazolinedodecylamine. The reactivity of grafted polymer is: ABS-g-acrylic acid Melt grafting of undecylenic acid onto ABS was carried out in a Haake Rheocord RC90 mixer using dicumyl peroxide as initiator.

将ABS接枝物与聚酰胺熔融共混，共混物的粘度和扫描电镜结果表明接枝物的反应活性顺序为：ABS-g-丙烯酸以DCP为引发剂，在HAAKE流变仪的密炼机中能成功进行10-十一烯酸熔融接枝ABS树脂。

The effect of the special monomers on the properties of the emulsion was studied. The results showed that when the amount of GMA was 4.4% and the amount of actyflon was 1.0% of the monomers, salt spray resistance of the emulsion, could be up to 240 h without rust spots and babbles.

结果表明，当环氧单体甲基丙烯酸缩水甘油醋用量为总单体用量的4.4%，含氟单体用量为总单体用量的1.0%时，能够显著提高乳液的交联度和疏水性，乳液成膜后进行中性盐雾实验，中性盐雾时间可达到240h，板面无锈点，主体无起泡。

This conformational change is reversible. So, the temperature-/pH- sensitive graft copolymers can be obtained by copolymerizing PNIPAM with MAA in a certain manner.

甲基丙烯酸是一种亲水性的单体，将它以适当的方式与PNIPAM聚合，可以得到既有pH敏感性也有温度敏感性的聚合物。

Its drug release rate is rather slow for its higher glass transition temperature. In Chapter Four, a series of polymers with various Tg were prepared by copolymerizing butyl methacrylate with MMA.

本论文第四章中通过共聚将甲基丙烯酸丁酯引入到PMMA中，制备得到不同Tg的聚合物，同时制备得到不同载药量的以PBMA为载体的基质。

In a chemical oxidative seeded polymerization system of aniline using the polystyrene seed particles pretreated by emulsifier or modified by copolymerizing with acrylic acid, colloidally stable core-shell polystyrene/polyaniline composite particles were prepared.

在苯胺的化学氧化种子聚合体系中，以乳化剂预处理和与丙烯酸共聚改性的聚苯乙烯粒子为种子，制备具有一定分散稳定性的聚苯乙烯／聚苯胺核－壳型复合高分子粒子乳液。

In order to study the mechanism of macromolecule deterring propellant on changing burning law,the polymerizing conditions,mechanical and thermal decomposition performance of coating-layer is studied.

通过改变聚合方式、温度、时间、引发剂、聚合界面的方法，探讨了涂覆层的聚合工艺；通过材料试验机试验和热分解试验，研究了聚二甲基丙烯酸乙二醇酯涂覆层在不同温度下的力学性能及其热分解规律。

The general ideas of this paper is to prepare polymercomposite emulsions of modified rosins and acrylates with mini-emulsion polymerizationmethod, and to discover the relations between their preparation, structure and properties, andfinally to provide theoretical basis to the deep utilization of rosin and to the development ofnew polymer materials from natural renewable resources.

论文的总体思路是采用细乳液聚合手段，创新开发改性松香／丙烯酸酯复合高分子乳液，并揭示其制备、结构和性能的关系，为松香的深加工利用以及用天然可再生资源开发高分子新材料提供理论依据。

The Company's production of a variety of specifications fluorine rubber, EPDM rubber, acrylic rubber, nitrile rubber series, including the oil seal products: oil seal-under-valve, engine oil seals, shock absorber oil seal, dust cap, O-ring rubber and other miscellaneous items, the company can make a customer's request to let you satisfied with the products.

本公司生产各种规格的氟橡胶、三元乙丙胶、丙烯酸酯胶、丁腈胶系列，油封产品包括：气门杆油封、发动机油封、减震器油封、防尘罩、O型圈及其它橡胶杂件，公司可以根据客户的要求做出让您满意的产品。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新