Azobisisobutyronitrile → 3-[Dimethoxy(methyl)silyl]propyl 2-methylprop-2-enoate
Reaction equation
N(C(C)(C)C#N)=N[C:3](C)(C)C#N.[CH3:13][C:14]([C:16]([O:18][CH2:19][CH2:20][CH2:21][Si:22](OC)([O:25][CH3:26])[O:23][CH3:24])=[O:17])=[CH2:15]>C1(C)C=CC=CC=1>[C:16]([O:18][CH2:19][CH2:20][CH2:21][Si:22]([CH3:3])([O:25][CH3:26])[O:23][CH3:24])(=[O:17])[C:14]([CH3:13])=[CH2:15]Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Next, the 51.99 mg of silk fibroin fiber having a vinyl group (hereinafter referred to as a vinyl introduction SF), 10 ml of anhydrous toluene, 132.19 mg of azobisisobutyronitrile as an initiator, and 1.0 g of methacryloxypropylmethyldimethoxysilane (Product No KBM-503 produced by Shin-Etsu Chemical Co.Ltd: hereinafter referred to as KBM) were contained in a polymer glass tube, and then were subjected to several sets of deairing/nitrogen gas filling. Then, the materials were sealed to react with each other at 60° C. for a predetermined period. The resultant is a silk fibroin fiber (hereinafter referred to as KBM-g-SF) in which a high molecular chain containing an alkoxysilyl group in its end is bonded to a polymer-based material through graft polymerization. Table 1 shows the introduction ratio (%) of alkoxysilyl group in this case at each given reaction time. Note that, the introduction ratio was found according to the following Formula (1), in which ag expresses the weight of the vinyl introduced SF and bg expresses the weight of the KBM-g-SF. Introduction ratio (%)=((b−a)/a)×100 (1)
Sources & evidence
- ORD record
- ord-4729badcf04640f5ba48d495315508d6
- Source dataset
- uspto-grants-2009_01
- Patent number
- US07473731B2
Reaction notes
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