JPS557804A - Preparation of polymethacrylic ester - Google Patents

Preparation of polymethacrylic ester

Info

Publication number
JPS557804A
JPS557804A JP7854078A JP7854078A JPS557804A JP S557804 A JPS557804 A JP S557804A JP 7854078 A JP7854078 A JP 7854078A JP 7854078 A JP7854078 A JP 7854078A JP S557804 A JPS557804 A JP S557804A
Authority
JP
Japan
Prior art keywords
polymerization
phenyl
alkyl
molecular weight
aromatic vinyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7854078A
Other languages
Japanese (ja)
Other versions
JPS5761282B2 (en
Inventor
Sanjiyu Fukuda
Kazuo Tago
Akihiko Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tosoh Corp
Original Assignee
Toyo Soda Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Soda Manufacturing Co Ltd filed Critical Toyo Soda Manufacturing Co Ltd
Priority to JP7854078A priority Critical patent/JPS557804A/en
Publication of JPS557804A publication Critical patent/JPS557804A/en
Publication of JPS5761282B2 publication Critical patent/JPS5761282B2/ja
Granted legal-status Critical Current

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To prepare a polymethacrylic ester useful as resist materials for radiation- exposure and having a high molecular weight and a sharp molecular weight distribution, by carrying out the polymerization in the presence of a trace amount of a specific aromatic vinyl compound.
CONSTITUTION: In the anionic polymerization of a methacrylic ester [e.g. formula I (R is 1W4C alkyl or phenyl), etc.], a trace amount of an aromatic vinyl compound II (R' is H, 1W4C alkyl or phenyl; R" is phenyl or 1W4C alkyl) (preferably ≤1 mole% on the basis of the methacrylic ester) is added to the polymerization system. The polymerization is carried out preferably at a lower temperature from -120°C to -50°C, if desired under stirring, in the presence of a polymerization initiator.
COPYRIGHT: (C)1980,JPO&Japio
JP7854078A 1978-06-30 1978-06-30 Preparation of polymethacrylic ester Granted JPS557804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7854078A JPS557804A (en) 1978-06-30 1978-06-30 Preparation of polymethacrylic ester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7854078A JPS557804A (en) 1978-06-30 1978-06-30 Preparation of polymethacrylic ester

Publications (2)

Publication Number Publication Date
JPS557804A true JPS557804A (en) 1980-01-21
JPS5761282B2 JPS5761282B2 (en) 1982-12-23

Family

ID=13664736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7854078A Granted JPS557804A (en) 1978-06-30 1978-06-30 Preparation of polymethacrylic ester

Country Status (1)

Country Link
JP (1) JPS557804A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6194701A (en) * 1984-10-16 1986-05-13 朝日ウッドテック株式会社 Manufacture of grooved wood masaio pattern building materialhaving thick external appearance
JPS61120813A (en) * 1984-11-05 1986-06-07 エルフ・アトシェム・ソシエテ・アノニム Polymerization of acryl monomer and optionally acryl monomerand non-acryl comonomer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6194701A (en) * 1984-10-16 1986-05-13 朝日ウッドテック株式会社 Manufacture of grooved wood masaio pattern building materialhaving thick external appearance
JPH047885B2 (en) * 1984-10-16 1992-02-13 Asahi Utsudo Tec Kk
JPS61120813A (en) * 1984-11-05 1986-06-07 エルフ・アトシェム・ソシエテ・アノニム Polymerization of acryl monomer and optionally acryl monomerand non-acryl comonomer

Also Published As

Publication number Publication date
JPS5761282B2 (en) 1982-12-23

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