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    • 4. 发明授权
    • Polymeric antioxidants
    • 聚合物抗氧化剂
    • US07595074B2
    • 2009-09-29
    • US10761933
    • 2004-01-21
    • Ashok L. CholliVijayendra KumarAshish DhawanJayant KumarVirinder Singh ParmarLynne Ann SamuelsonFerdinando F. Bruno
    • Ashok L. CholliVijayendra KumarAshish DhawanJayant KumarVirinder Singh ParmarLynne Ann SamuelsonFerdinando F. Bruno
    • A23D7/00
    • A23G3/36A23G4/06A23L3/3463A23L3/349A23L13/42C09K15/08C09K15/10C09K15/12C09K15/18C09K15/20C10M2207/026C10M2209/10C11B5/0035
    • A method of preparing a phenolic polymer comprising: a) protecting at least one hydroxyl group of a substituted or unsubstituted phenol represented by Structural Formula (XXIX), wherein: R11, R12, R13, R14 and R15 are independently —H, —OH, —NH, —SH, a substituted or unsubstituted alkyl or aryl group, a substituted or unsubstituted alkoxycarbonyl or aryloxycarbonyl group, a substituted or unsubstituted alkoxy group or a saturated or unsaturated carboxylic acid group; or R11, R12, R13, R14 or R15, in conjunction with an adjacent R11, R12, R13, R14 or R15, forms a substituted or unsubstituted alkylene dioxy group; provided that at least one of R11, R12, R13, R14 or R15 is a tert-butyl group 1-ethenyl-2-carboxylic acid or ester thereof, a substituted or unsubstituted alkylene dioxy group or a substituted or unsubstituted n-alkoxycarbonyl group, at least one of R11, R12, R13, R14 or R15 is a hydroxyl group, and at least one of R11, R12, R13, R14 and R15 is —H; with a protecting group, wherein thereby obtaining one or more protected hydroxyl groups; and b) polymerizing the substituted or unsubstituted phenol, thereby obtaining the phenolic polymer.
    • 一种制备酚醛聚合物的方法,包括:a)保护由结构式(XXIX)表示的取代或未取代的酚的至少一个羟基,其中:R 11,R 12,R 13,R 14和R 15独立地为-H,-OH, -NH,-SH,取代或未取代的烷基或芳基,取代或未取代的烷氧基羰基或芳氧基羰基,取代或未取代的烷氧基或饱和或不饱和羧酸基团; 或R11,R12,R13,R14或R15与相邻的R11,R12,R13,R14或R15结合形成取代或未取代的亚烷基二氧基; 条件是R11,R12,R13,R14或R15中的至少一个是叔丁基1-乙烯基-2-羧酸或其酯,取代或未取代的亚烷基二氧基或取代或未取代的正烷氧基羰基, R 11,R 12,R 13,R 14或R 15中的至少一个为羟基,R 11,R 12,R 13,R 14和R 15中的至少一个为-H; 与保护基,其中由此获得一个或多个被保护的羟基; 和b)使取代或未取代的苯酚聚合,由此得到酚类聚合物。
    • 9. 发明授权
    • Enzyme-catalyzed modifications of macromolecules in organic solvents
    • 大分子在有机溶剂中的酶催化修饰
    • US06210936B1
    • 2001-04-03
    • US09165043
    • 1998-10-01
    • Joseph A. AkkaraFerdinando F. Bruno
    • Joseph A. AkkaraFerdinando F. Bruno
    • C12P762
    • C12P7/625
    • Protease enzyme from Bacillus subtilis and Bacillus sp. Catalyzes the acylation of organic solvent-insoluble macromolecules in isooctane solution containing vinyl esters of fatty acids, lactones or lactides as acyl donors. The reaction occurs only when the enzyme is solubilized via ion-pairing with the anionic surfactant dioctylsulfosuccinate, sodium salt (AOT). Enzyme based acylation was demonstrated in macromolecules such as silk proteins. These macromolecules are reactive either as cryogenically milled powder suspended in the organic solvent or as a thin film deposited onto ZnSe slides. This selective acylation approach represents the first attempt at using enzymes to modify organic-insoluble macromolecules in nonaqueous media.
    • 来自枯草芽孢杆菌和芽孢杆菌的蛋白酶 催化有机溶剂不溶性大分子在含有脂肪酸,内酯或丙交酯的乙烯基酯作为酰基供体的异辛烷溶液中的酰化反应。 仅当酶通过与阴离子表面活性剂二辛基磺基琥珀酸盐钠盐(AOT)的离子配对溶解时才发生反应。 在大分子如丝蛋白中证明了酶的酰化作用。 这些大分子作为悬浮在有机溶剂中的低温研磨粉末或沉积在ZnSe载片上的薄膜是反应性的。 这种选择性酰化方法代表了在非水介质中使用酶来修饰有机不溶性大分子的第一次尝试。