Process for halomethylation of high performance polymers

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

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528125, 528126, 528127, 528128, 528171, 528174, 528176, 528185, 528190, 528191, 528196, 528373, 528391, 528423, 522 5, 522 71, 522165, 522167, 525390, 525437, 525471, 525534, 525535, 525536, 525540, 298901, 524 81, 524167, 524284, 524745, 524765, G03C 1005, C08G 802, H01R 4300

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060201193

ABSTRACT:
Disclosed is a process which comprises reacting a polymer of the general formula ##STR1## or ##STR2## wherein x is an integer of 0 or 1, A is one of several specified groups, such as ##STR3## B is one of several specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units, with a halomethylethyl ether, a hydrohalic acid, and acetic acid in the presence of a halogen-containing Lewis acid catalyst, thereby forming a halomethylated polymer.

REFERENCES:
patent: 5739254 (1998-04-01), Fuller et al.
patent: 5753783 (1998-05-01), Fuller et al.
patent: 5761809 (1998-06-01), Fuller et al.
patent: 5863963 (1999-01-01), Narang et al.
Daly, "Chloromethylation of Condensation Polymers Containing an Oxy-1,4-Phenylene Backbone," Polymers Preprints (1979), vol. 20, No. 1, pp. 835-837.
Camps, "Chloromethylstyrene: Synthesis, Polymerization, Transformations, Applications," Jms-Rev. Macromol, Chem. Phys., C22(3), 343-407 (1982-83).
Tabata, "Pulse Radiolysis Studies on the Mechanism of the High Sensitivity of Chloromethylated Polystyrene as an Electron Negative Resist," 1984pp. 287-288.
Jurek, "Deep UV Photochemistry of Copolymers of Trimethylsilymethyl Methacrylate and Chloromethylstyrene," Polymer Preprints, 1988, pp. 546-547.
Percec, "Functional Polymers and Sequential Copolymers by Phase Transfer Catalysis, 2a)," Makromal Chem., 1984, pp.1867-1880.
Percec, "Functional Polymers and Sequential Copolymers by Phase Transfer Catalysis, 3a)," Makronal Chem., 1984, pp. 2319-2336.
Percec, "Functional Polymers and Sequential Copolymers by Phase Transfer Catalysis 4. A New and Convenient Synthesis of p-and m-Hydrozymethylphenylacetylene," Polymer Bulletin 10, 223-230, 1983.
Amato, "A New Preparation of Chloromethyl Methyl Ether Free of Bis(chloromethyl) Ether," 1979 Georg Thieme Publishers.
McKillop, "A Simple and Inexpensive Procedure for Chloromethylation of Certain Aromatic Compounds," Tetrahedron Letters, vol. 24, No. 18, 1983, pp. 1933-1936.
Tepenitsyna, "Synthesis of Intermediates for Production of Heat Resistant Polymers (Chloromethylation of Diphenyl Oxide)," Zhurnal Prikladnoi Khimii, vol. 40, No. 11, Nov., 1967, pp. 2540-2546.

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