• Bulletin of the Korean Chemical Society
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• v.30 no.9
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• pp.2129-2131
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• 2009

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.25-28
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• 2002

비공역형 단량체인 비닐아세테이트(VAc)는 공역형 비닐계 단량체와 달리 라디칼의 활성이 너무 커서 중합 도중 빈번한 연쇄이동반응과 정지반응에 의해 분지구조의 고분자가 얻어지며 고분자량의 폴리비닐아세테이트를 얻기가 어려운 것으로 알려져 있다. 폴리비닐알코올(PVA)은 비닐알코을 단량체의 호변이성질화 때문에 단량체의 직적중합에 의해서는 얻을 수 없고 일반적으로 비닐아세테이트(VAc)를 라디칼 중합하여 얻어진 폴리비닐아세테이트(PVAc)를 비누화하여 합성한다. (중략)

• Proceedings of the Korean Fiber Society Conference
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• 2001.10a
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• pp.203-206
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• 2001

산업용 섬유로서 그 사용 범위가 다양해질 것으로 예상되는 고강도, 고탄성률 폴리비닐알코올(PVA) 섬유를 얻기 위해서는 먼저 분지 구조가 없는 고분자량의 PVA의 합성이 필요하다. 그러나 비닐아세테이트와 같은 비공역형 단량체는 성장종 라디칼종의 활성이 매우 커서 성장반응 속도와 정지반응 속도가 매우 빠르므로 연쇄 이동반응이 빈번하게 일어나 고분자량의 중합체를 얻기 힘들고 또 분지구조를 갖게된다. (중략)

• Journal of the Korean Chemical Society
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• v.40 no.2
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• pp.32-152
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• 1996

• Macromolecular Research
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• v.13 no.4
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• pp.356-361
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• 2005

• Macromolecular Research
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• v.17 no.8
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• pp.623-625
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• 2009

• Bulletin of the Korean Chemical Society
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• v.7 no.3
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• pp.210-213
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• 1986

1,1-Dicyano-2-ethoxycyclobutane (1a) was prepared by [2 + 2] cycloaddition reaction of vinylidene cyanide with ethyl vinyl ether. 1,1-Dicyano-2-phenylcyclobutane (1b) was prepared by the reactions involving the reduction of cinnamyl alcohol, chlorination, cyanomethylation, bromination, and ring-closure reaction. Compound 1a was ring-opening polymerized with NaCN or n-butyllithium to give a low molecular weight polymer. The compound 1b however, failed to polymerize by either anionic or radical catalysts.

• Proceedings of the Polymer Society of Korea Conference
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• 2006.10a
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• pp.324-324
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• 2006

In copolymerization of methyl acrylate (MA) and methyl methacrylate (MMA) with various ratios of MA to MMA and $[CuCl]/[PMDETA]/[PVAc-CCl_{3}]$ catalyst system in bulk at $80^{\circ}C$ via ATRP, several terpolymer with different copolymer composition, were synthesized. The atom transfer radical copolymerization of MA and MMA with macroinitiator, is very sensitive to molecular weight and its distribution. In this work it was possible to calculate the molecular weight of the terpolymers and show that it is close to the experimentally determined number average molecular weight from GPC.

• Applied Chemistry for Engineering
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• v.1 no.1
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• pp.1-10
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• 1990

Polysilane derivatives are attracting considerable attention as a new class of material since 1980. The preparation methods of low molecular weight, cyclic, and high molecular weight polysilane derivatives are described, and also photochemistry characteristics for silicon-silicon single bond and for the nature of the substituent on silicon backbone are discussed. Polysilanes may be used as a precursors to silicon carbide fiber, as photoresist in microelectronics, as photoconductor, and as photoinitatior for free radical polymerization.

• Bulletin of the Korean Chemical Society
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• v.19 no.8
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• pp.851-856
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• 1998

2,4-Di-(2-vinyloxyethoxy)benzylidenemalononitrile (2a), methyl 2,4-di-(2-vinyloxyethoxy)benzylidenecyanoacetate (2b), 3,4-di-(2-vinyloxyethoxy)benzylidenemalononitrile (4a), and methyl 3,4-di-(2-vinyloxyethoxy)benzylidenecyanoacetate (4b), 2,5-di-(2-vinyloxyethoxy)benzylidenemalononitrile (6a), and methyl 2,5-di-(2-vinyloxyethoxy)benzylidenecyanoacetate (6b) were prepared by the condensation of 2,4-di-(2-vinyloxyethoxy)benzaldehyde (1), 3,4-di-(2-vinyloxyethoxy)benzaldehyde (3), and 2,5-di-(2-vinyloxyethoxy)benzaldehyde (5) with malononitrile or methyl cyanoacetate, respectively. Trifunctional divinyl ether monomers 2, 4 and 6 were polymerized readily by free radical initiators to give optically transparent swelling poly(vinyl ethers) 7-9. Polymers 7-9 were not soluble in common organic solvents such as acetone and DMSO due to crosslinking. Polymer 7-9 showed a thermal stability up to 300 ℃ in TGA thennograms.