In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased
同時採用有機硅單體延遲滴加及添加水
解抑制劑等技術，有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水
解及縮合反應，提高了聚合物大分子鏈中有機硅鏈節的含量；利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵，並通過對共聚產物力學和吸水率的測試，證實了本研究所制備的有機硅改性丙烯酸
酯共聚物具有比純丙烯酸
酯聚合物更優良的力學及耐水性能；從分子設計角度出發，利用醇
解反應合成出水
解、縮合反應速率較慢的兩種新型不飽和有機硅單體： ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷；利用核磁共振對新型硅烷單體結構進行了證實；研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸
酯乳液，且其聚合產物具有較高的力學及耐水性能。
Pgla, one biodegradable material, is used to braid the conduits, which integrates the merits of its two aggregate ingredients. it is easy to adjust degrading rate to match the regeneration period of the nerve by changing the proportion of the two ingredients. the conduits are fabricated enlacing 2. 2 millimeter stainless steel on the braiding machine with 16 spindles using 2700 tex yarns. four conduits with different structures are braided : common braided structure, braided structure using braided ply yarn, braided structure with inserted reinforcing yarn and adding bridge - yarn structure, the last two conduits are new attempts to look for good shape - keeping structure, being able to lead the nerve to regenerate effectively
本課題選用可生物降
解材料聚乙丙交
酯（ pgla ）為原料，它兼具兩種聚合成分的優點，可以通過調節兩者聚合的配比來調節它的降
解周期，使與神經再生的周期相吻合。導管的製作是在16錠編織機上採用2700tex紗線進行帶芯編織，芯子為直徑2 . 2mm的不銹鋼絲。共製作四種結構神經導管，分別為普通結構神經導管、編織線結構神經導管、加筋結構神經導管和加芯結構神經導管。
Isopropylidene glycerol is prepared by condensation of acetone with glycerol, thereafter it was esterified with octanoyl chloride in pyridine as catalyst, and finally the latter was decomposed with boric acid
摘要以甘油和丙酮為原料制得異丙叉甘油，其與辛酰氯在吡啶催化下
酯化，再經硼酸作用下分
解得到單辛酸甘油
酯。
At sufficiently high temperatures and alkalinity, fatty esters may be hydrolyzed to produce soaps.
在足夠的溫度和堿度的情況下，脂護
酯可能被水
解產生皂類。
Three water - soluble acrylic resins are prepa red by polymerizing esters acrylate, acrylic acid ， methylacrylic acid ， esters methylacrylate with phenyl - ethene or ethylene acetate in present of water or alcohol and initiating agent. properties of the acrylic resins are characterized. results show that the resins possess excellent character, i. e. adhibity, water - solubility, expansion after dry for water ， anti acidity or bascity and brightness in the products of same type
以丙烯酸、丙烯酸
酯、甲基丙烯酸、甲基丙烯酸
酯等作為基料，在引發劑的存在下，以水或醇作溶劑進行聚合，加入苯乙烯、醋酸乙烯等改性，合成了3種不同的水溶性丙烯酸改性樹脂，並對其性能進行了測定.結果表明：這3種樹脂的粘度、水溶
解性、乾燥后膜的吸脹性、抗酸堿性、光亮度等性能均優于同類產品
This method, however, involves using a large excess of diethyl carbonate ( for example, 4 - 8 mols. ) ; it also involves preparing sodium ethylate by dissolving sodium metal in ethanol, which process must be carried out very slowly and carefully if it is to be used on a manufacturing scale
但是這一方法涉及到使用大量過量的二乙基碳酸
酯（例如， 4 - 8摩爾） ；同時也涉及到在乙醇中溶
解納來制備乙醇納的反應，這個過程必須非常緩慢小心地進行，如果在工業生產級別上是用這一方法就比較麻煩了。
The isodecyl formate is considerably more stable to hydrolytic attack than the isodecyl otrhoformate.
甲酸異癸
酯，較原甲酸異癸
酯對水
解的破壞作用要安定得多。
Study on the determination of ethyl formate in workplace air with gas chromatography
作業場所空氣中甲酸乙
酯溶劑
解吸氣相色譜測定方法的探討
The results were as follows : leaching solution by hot water extraction was date in color and had mellow date aroma and the highest fusel oil content but strong bitter taste ; leaching solution by pectinase enzymolysis had the highest reducing sugar content easy for fermentation but excessively high methanol content in fermenting wine ; leaching solution by microwave extraction had the shortest extraction time and fermentation time and the highest ethyl acetate content in wine and the produced wine had special aroma
結果表明， 90熱水浸提，浸提液發酵酒顏色呈棗紅色，雜油醇含量最高，有濃郁棗香，但苦味重；果膠酶酶
解浸提，浸提液還原糖含量最高，利於發酵，但發酵酒的甲醇含量過高；微波強化浸提，浸提時間和發酵時間最短，所得棗酒的乙酸乙
酯含量最高，且有特殊香味。
Tannin acyl hydrolase ( tannase ) is an enzyme that hydrolyzes the ester bonds of tannic acid to produce gallic acid and some other compounds. tannase is widly used in beverage, food, leather and chemical industry
單寧酶（ tannase ）是一種水
解酶，能夠水
解沒食子酸單寧中的
酯鍵和縮酚酸鍵，生成沒食子酸和其它化合物。
Optimized synthesis of lipase - catalyzed hexyl ester in supercritical co2
以反應區面法研究脂
解酵素催化酚酸
酯類合成之最優化。
The rate of hydrolysis is for the most part significantly lower than the esterification rate.
多數情況下水解速度較酯化速度低得多。
