甲基丙烯酸

Poly-acrylic acid resin was synthesized by emulsion polymerization with meth-acrylic acid and methyl meth-acrylate as monomers. Which used as enteric film-coating material: aqueous poly-acrylic acid resin Ⅲ. and then desiccate them to resin powder by sprayer.

以甲基丙烯酸与甲基丙烯酸甲酯为共聚单体，用乳液聚合法制备肠溶型水性聚丙烯酸树脂Ⅲ乳液，喷雾干燥成树脂粉末。

The effect of cationic comonomer methacryloyloxy ethyl trimethylammonium chloride on the rate of polymerization,the dissolvability of polymer in THF,the stability and pH value of methyl methacrylate/butyl acrylate/DMC soap-free emulsion were studied systematically.

研究了阳离子型共聚单体甲基丙烯酰氧乙基三甲基氯化铵的用量对甲基丙烯酸甲酯/丙烯酸丁酯/DMC 无皂乳液聚合速率、聚合物在THF中的溶解性、乳液稳定性及pH值的影响。

Polymer A is a acrylic copolymer containing 70% by weight of methacrylic acid and 30% by weight of methyl methacrylate prepared by a catalytic chain transfer method to give a polymer having a number averaged molecular weight of approximately 600 as measured by GPC.

聚合物A是丙烯酸共聚物其含有甲基丙烯酸重量70％，按重量的30％甲基丙烯酸甲酯的催化链转移的方法准备给予聚合物具有的平均人数约600分子量为由GPC测定。

However, common polyacrylate emulsion has some disadvantages such as poor water-resistance, poor film-forming in low temperature, becoming pastiness in high temperature, polluting environment with emulsifier and so on.

由于聚丙烯酸酯乳液具有耐热、耐光和耐老化等优点在涂料工业中得到了广泛的应用，但普通的聚丙烯酸酯乳液还存在耐水性差、低温下不易成膜、高温发粘以及含乳化剂的废液会对环境造成污染等缺点，因此，本文结合无皂乳液聚合和核壳乳液聚合技术，合成了聚丙烯酸丁酯/丙烯酸钠齐聚物，并以此为乳化剂，采用种子半连续法合成了以聚丙烯酸丁酯为核，聚甲基丙烯酸甲酯-苯乙烯为壳的无皂核壳聚丙烯酸酯乳液。

An acrylic resin was synthesized by the radical copolymerization with methyl methacrylate, butyl acrylate and methacrylic acid monomers in solution using benzoperoxide as initiator. Appropriate parameters of monomer ratio, monomer concentration, solvent, and reaction temperature were found by experiment.

以过氧化二苯甲酰为引发剂，采用溶液聚合合成了甲基丙烯酸甲酯-丙烯酸丁酯-甲基丙烯酸树脂，通过实验确定了自由基共聚合适宜的单体配比、单体浓度、引发剂浓度、溶剂以及反应的升温速度。

Water; Glycerin; Sodium Laureth Sulfate; Polyethylene; Acrylates/C10-30 Alkyl Acrylate Crosspolymer; Lauryl Glucoside; Phenoxyethanol; Microcrystalline Wax; Fragrance; Methylparaben; Menthyl Lactate; Sodium Hydroxide; Tetrasodium EDTA; Cellulose; Lactose; Sodium Ascorbyl Phosphate; Acrylates/Ammonium Methacrylate Copolymer; Hydroxypropyl Methylcellulose; Mica; Talc; Titanium Dioxide; Tocopheryl Acetate; Triethyl Citrate; Cucumis Sativus Fruit Extract; Citrus Grandis Fruit Extract; Panax Ginseng Root Extract; Zingiber Officinale Root Extract; Iron Oxides; Red 30; Yellow 5; Yellow 5 Lake

水；甘油；钠Laureth硫酸盐；聚乙烯； Acrylates/C10-30烷基丙烯酸酯Crosspolymer ；十二烷基糖苷； Phenoxyethanol ；微晶蜡；香水； Methylparaben ；薄荷乳酸；氢氧化钠； Tetrasodium乙二胺四乙酸；纤维素；乳糖；钠抗坏血酸磷酸酯；丙烯酸酯/铵甲基丙烯酸共聚物；羟丙基甲基纤维素；云母；滑石粉；二氧化钛； Tocopheryl醋酸；三柠檬酸；黄瓜水果提取物；柚皮果提取物；人参根提取物；生姜根提取物；铁氧化物；红30 ；黄河5 ；黄河5湖

Water; Glycerin; Sodium Laureth Sulfate; Polyethylene; Acrylates/C10-30 Alkyl Acrylate Crosspolymer; Lauryl Glucoside; Phenoxyethanol; Microcrystalline Wax; Fragrance; Methylparaben; Menthyl Lactate; Sodium Hydroxide; Tetrasodium EDTA; Cellulose; Lactose; Sodium Ascorbyl Phosphate; Acrylates/Ammonium Methacrylate Copolymer; Hydroxypropyl Methylcellulose; Mica; Talc; Titanium Dioxide; Tocopheryl Acetate; Triethyl Citrate; Cucumis Sativus Fruit Extract; Citrus Grandis Fruit Extract; Panax Ginseng Root Extract; Zingiber Officinale Root Extract; Iron Oxides; Red 30; Yellow 5; Yellow 5 Lake.

成分Ingredients 水；甘油；钠Laureth硫酸盐；聚乙烯； Acrylates/C10-30烷基丙烯酸酯Crosspolymer ；十二烷基糖苷； Phenoxyethanol ；微晶蜡；香水； Methylparaben ；薄荷乳酸；氢氧化钠； Tetrasodium乙二胺四乙酸；纤维素；乳糖；钠抗坏血酸磷酸酯；丙烯酸酯/铵甲基丙烯酸共聚物；羟丙基甲基纤维素；云母；滑石粉；二氧化钛； Tocopheryl醋酸；三柠檬酸；黄瓜水果提取物；柚皮果提取物；人参根提取物；生姜根提取物；铁氧化物；红30 ；黄河5 ；黄河5湖

Two series of polyurethane acrylate grafted acrylic resins (Acr-g-TPU-PETA and Acr-gPPU-PETA) self-emulsifying systems are obtained by grafting -NCO group modified polyurethane acrylates with acrylic copolymer prepared from n-butyl acrylate, styrene,βhydroxyethyl methacrylate and acrylic acid The self-emulsifying systems showed Newtonian fluidity with viscosity closed to that of water, the solid contents were around 30% The T〓 of 15～4℃ for dried film before photocuring favored film formation at room temperature DSC and DMA results showed that PU-PETA is compatible with acrylic resin in the grafted resin The TG and dTG curves for Acr-g-PU-PETA samples were substantially different from the corresponding blends, and the brodened dTG peaks for photocured grafted resin suggest that there might be multiple interactions among chain segments The photocued film of the grafted resins self-emulsifying system exhibited good overall properties with polyurethane acrylate grafts ranging from 30% to 50%, and Acr-g-TPU-PETA series showed better properties than Acr-gPPU-PETA series The adhesion of the photocured film was 1～2 grade, impact strength was 50kg-cm and flexibility was 1mm The Shore hardness and the adhesion of the film decreased markedly if PETA was replaced by HEMA as photoactive group due to the lower C=C double bond content in the grafted resin The polyhydroxy amine-linked thioxanthones photoinitiators can be evenly dispersed in self-emulsifying system without color spot appearing in the dried film The films photocured with IV〓～IV〓 generally exhibited higher Shore hardness, gloss and solventresistance than that cured with Irgacure 2959 and did not induce the rusting of the iron substrate Pigmenting with titanium oxide had no effect on the photocuring The polyhydroxy amine-linked thioxanthone IV〓 and IV〓 can be new candidates for the formulation of titanium oxide pigmented photocurable water-borne coatings for their pale-yellow appearance and slight interference with the color of the coatings WB 4759 with high water-solubility coalesced and separated from the dried resin film, and even induced the rusting of iron substrate.

以丙烯酸丁酯，甲基丙烯酸-β-羟乙酯，丙烯酸及苯乙烯合成厂丙烯酸共聚树脂，并与含-NCO端基的聚氨酯丙烯酸酯接枝反应，经水性化后，得到两个系列（Acr-g-TPU-PETA和Acr-g-PPU-PETA）各5个不同配比的丙烯酸树脂接枝聚氨酯丙烯酸酯自乳化体系，粘度与水相近，为牛顿流体，固含量30％左右。光固化前干燥涂膜的玻璃化转变温度在-15℃～4℃之间，有利于室温下成膜。DSC及DMA谱表明两种树脂基本相容。Acr-g-PU-PETA的热失重行为明显不同于共混材料，接枝样dTG峰明显宽化，表明接枝样中链段之间的相互作刚有多重性，丙烯酸树脂与聚氨酯之间有一定的相容性。接枝树脂自乳化体系光固化涂层的综合性能以聚氨酯丙烯酸酯成分为50％～30％者相对较好，且以Acr-g-TPU-PETA系列更理想。光固化膜的附着力为1～2级，冲击强度为50kg·cm，柔软性多为1mm。以HEMA代替PETA作为接枝树脂的活性基团，碳—碳双键密度太低，光固化膜交联点太少，硬度和附着力均较差。多羟基胺连硫杂蒽酮光引发剂能均匀分散于树脂自乳化体系和接枝树脂干膜中，不出现色斑，光固化膜肖氏硬度一般高于以Irgacure 2959为光引发剂的光固化膜，光泽度及耐丁酮溶剂性能均有所提高，不会诱导铁基生锈，钛白着色对光固化结果几乎没有影响。本论文所合成的多羟基胺连硫杂蒽酮光引发剂IV〓与IV〓为浅黄色，对光固化涂层的颜色干扰较小，为配制钛白着色光固化水性涂料提供了新的光引发剂。水溶性太强的WB 4759在干膜中易聚结析出，且对所附着的铁基有诱导锈蚀作用。

Comb-shaped polycarboxylic -type superplasticizers were synthesized with acrylic acid,mathacrylic acid,sodium allylsulphonateand methoxypolymethacrylatethrough aqueous copolymerization initiated by ammonium persulfate.

将甲氧基聚氧乙烯醚单甲基丙烯酸酯、丙烯酸、甲基丙烯酸和烯丙基磺酸钠进行水溶液共聚，合成了具有梳型结构的聚羧酸系高效减水剂。

UV curing powder coatings ; acrylic resin ; methacrylic acid ; glycidyl methacrylate ; photosensitive resin

UV固化粉末涂料；丙烯酸树脂；甲基丙烯酸；甲基丙烯酸缩水甘油酯；感光树脂

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