Polymerization method

Details Polymerization method Polymerization method

2006-02-28

2006-02-28

Yamnitzky, Marie (Department: 1774)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S173000, C526S239000, C526S240000, C526S242000, C526S279000, C526S280000, C526S293000, C526S294000, C526S296000, C526S301000, C528S040000, C528S043000, C528S367000, C528S369000, C528S394000, C528S397000, C257S040000, C428S690000, C428S917000, C313S504000

Reexamination Certificate

active

07005484

ABSTRACT:
A method for making a polymer or oligomer comprising the steps of making a first monomer comprising a substituted aromatic or heteroaromatic group by providing an aromatic or heteroaromatic group substituted with first and second director groups, performing metalisation at a first position on the aromatic or heteroaromatic group, performing electrophilic substitution so as to provide a first substituent group at the first position, and contacting in a reaction mixture the first monomer with at least two further monomers that independently are the same or different from the first monomer under conditions so as to form a polymer or oligomer, wherein the nature and positions of the first and second director groups regioselect the first position.

REFERENCES:
patent: 6114490 (2000-09-01), Kreuder et al.
patent: 09-104732 (1997-04-01), None
patent: WO 96/29356 (1996-09-01), None
patent: WO 98/46652 (1998-10-01), None
McCullough et al., “Enhanced Electrical Conductivity in Regioselectively Synthesized Poly(3-alkylthiophenes)”, J. Chem. Soc., Chem. Commun., 1992, pp. 70-72.
“Directed Ortho Metalation”, Victor Snieckus, Chemical Reviews, vol. 90, No. 6, Sep./Oct. 1990, pp. 879-933.
“Combined Directed Ortho Metalation-Cross Coupling Strategies”, Victor Snieckus, Pure & Appl. Chem, vol. 66, Nos 10/11, 1994, pp. 2155-2158.
“Photoluminescence and Electroluminescence of Films From Soluble PPV-Polymers”, Andersson et al., Elsevier Science, Synthetic Metals 85, 1997, pp. 1275-1276.
“Electroluminescent Properties of Novel Silyl-Disubstituted Soluble PPV Derivative”, Hwang et al., Mol. Cryst. Liq. Cryst., vol. 316, 1998, pp. 281-284.
“Synthesis of 2-Substituted Dihydropyran3-0-Carbamates via Combined Metalation—Suzuki—Miyaura Cross-Coupling Reactions”, Bower et al., J. Org. Chem, 63, 1998, pp. 1514-1518.
“Synthesis, Spectroscopy and Electrochemistry Study on a Novel Di-Silyl Substituted Poly(p-phenylenevinylene)”, Wang et al., Elsevier Science, Synthetic Metals 105, 1999, pp. 85-89.
International Search Report for PCT/GB00/02850 dated Jan. 23, 2001.
International Preliminary Examination Report for PCT/GB00/02850 dated Oct. 4, 2001.

Affiliated with

Also associated with

Rating

Polymerization method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymerization method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymerization method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3688241